18-Letter Words Containing: I,I,S,A
(In Any Order)
There are 283 18 letter words,
895 18 letter phrases and
0 18 letter abbr's with
I,I,S,A in.
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|---|---|---|---|---|---|---|---|
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All 18 Letter Words
Words (283)
- telecommunications
- characteristically
- disproportionately
- inconsequentiality
- transubstantiation
- transmogrification
- oversimplification
- sociopsychological
- institutionalizing
- antivivisectionist
- disenfranchisement
- paleoclimatologist
- valetudinarianisms
- vaingloriousnesses
- unsubstantialities
- unpredictabilities
- uniformitarianisms
- ungrammaticalities
- unaccountabilities
- ultrasophisticated
- ultramicroscopical
- triskaidekaphobias
- transubstantiating
- transportabilities
- transmissibilities
- transistorizations
- transilluminations
- thermoplasticities
- theatricalizations
- tachistoscopically
- supranationalities
- supersophisticated
- supercivilizations
- superadministrator
- substitutabilities
- submicroscopically
- subclassifications
- subcategorizations
- structuralizations
- stoichiometrically
- stereospecifically
- stereoregularities
- somnambulistically
- semiquantitatively
- semiprofessionally
- semipermeabilities
- semidomestications
- semiconservatively
- sedimentologically
- satisfactorinesses
- sacrilegiousnesses
- revascularizations
- representativities
- renationalizations
- reinstitutionalize
- rehospitalizations
- recrystallizations
- radiosensitivities
- quattuordecillions
- quasiperiodicities
- quantitativenesses
- psychobiographical
- provincializations
- propagandistically
- pronounceabilities
- premillenarianisms
- predestinarianisms
- praiseworthinesses
- postmillennialists
- postmillennialisms
- postmillenarianism
- polyesterification
- polyacrylonitriles
- physiopathological
- photosensitization
- photoreactivations
- photomicrographies
- photolithographies
- photodissociations
- photodisintegrates
- photodisintegrated
- pertinaciousnesses
- perpendicularities
- pathophysiological
- particularizations
- paleoclimatologies
- overspecialization
- overoptimistically
- overindustrializes
- overindustrialized
- overfertilizations
- overcommunications
- overcommercializes
- overclassification
- oscillographically
- orthopsychiatrists
- orthogonalizations
- opinionativenesses
- nonrevolutionaries
- nonfraternizations
- nondiscriminations
- noncooperationists
- noncomparabilities
- noncommutativities
- nonarbitrarinesses
- neurotransmissions
- neuropsychiatrists
- multifariousnesses
- multicellularities
- monochromaticities
- misrepresentations
- misinterpretations
- misidentifications
- misclassifications
- misadministrations
- mineralocorticoids
- microradiographies
- microphotographies
- micromanipulations
- microencapsulation
- microencapsulating
- microcrystallinity
- microcalorimetries
- methemoglobinemias
- melodramatizations
- mechanochemistries
- manipulativenesses
- maladministrations
- magnetostrictively
- macroglobulinemias
- lymphangiographies
- lipopolysaccharide
- latitudinarianisms
- knowledgeabilities
- irretrievabilities
- irreplaceabilities
- irremediablenesses
- irreconcilableness
- intransitivenesses
- intersubstitutable
- interrelationships
- interpretabilities
- interoperabilities
- internationalities
- internationalising
- interminablenesses
- intermediatenesses
- interinstitutional
- intercolumniations
- insubstantialities
- institutionalising
- inhospitablenesses
- inharmoniousnesses
- inexplicablenesses
- inexhaustibilities
- industrializations
- individualizations
- indisputablenesses
- indispensabilities
- indiscriminatingly
- indiscriminateness
- indefatigabilities
- incontestabilities
- inconsiderableness
- inconceivabilities
- incommensurability
- inauspiciousnesses
- inarticulatenesses
- inappreciativeness
- impracticabilities
- imperturbabilities
- impersonalizations
- imperishablenesses
- immunoreactivities
- immunoprecipitates
- immunopathologists
- immunohematologist
- immunohematologies
- hyposensitizations
- hypersensitization
- hyperrationalities
- hyperpolarizations
- hyperpigmentations
- hypernationalistic
- hyperimmunizations
- hyperalimentations
- homoscedasticities
- histophysiological
- hemoglobinopathies
- granulocytopoiesis
- generalizabilities
- fractionalizations
- exterritorialities
- exceptionabilities
- evapotranspiration
- ethnomusicological
- establishmentarian
- epithelializations
- entrepreneurialism
- electrodesiccation
- echocardiographies
- disputatiousnesses
- disproportionation
- disproportionating
- disintermediations
- discriminabilities
- diphenylhydantoins
- dimethylhydrazines
- dihydroergotamines
- diastereoisomerism
- depersonalizations
- denominationalisms
- denationalizations
- demythologizations
- dematerializations
- deliberativenesses
- deinstitutionalize
- dedifferentiations
- decriminalizations
- counteradvertising
- conversationalists
- contradistinctions
- consubstantiations
- constitutionalizes
- constitutionalized
- constitutionalists
- constitutionalisms
- consequentialities
- congregationalists
- congregationalisms
- conceptualizations
- compartmentalising
- companionabilities
- commercializations
- commensurabilities
- collectivistically
- bureaucratizations
- bourgeoisification
- biotransformations
- biodegradabilities
- biocompatibilities
- bacteriorhodopsins
- australopithecines
- appreciativenesses
- antidiscrimination
- anticommercialisms
- antiadministration
- anagrammatizations
- unsatisfactoriness
- unenthusiastically
- unconstitutionally
- ultranationalistic
- territorialisation
- sentimentalization
- sentimentalisation
- rhinolaryngologist
- recruiting-sergeant
- pteridospermopsida
- overcapitalisation
- nonprognosticative
- neurophysiological
- muscivora-forficata
- laryngopharyngitis
- lacto-vegetarianism
- internationalistic
- industrial-strength
- hypoparathyroidism
- homobasidiomycetes
- histocompatibility
- hemidemisemiquaver
- fibrocartilaginous
- distinguishability
- cytoarchitectonics
- cylindrical-stemmed
- cross-fertilization
- cross-fertilisation
- corrosion-resistant
- characteristicness
- ballistocardiogram
- arteriolosclerosis
- antiferromagnetism
- anticholinesterase
- anti-traditionalism
Phrases (895)
- wisteria floribunda
- william shakespeare
- william james durant
- william dean howells
- william butler yeats
- whispering campaign
- wedding anniversary
- vladimir mayakovsky
- victor frankenstein
- vertical stabiliser
- vaccinium oxycoccus
- upton beall sinclair
- united arab emirates
- transmitting aerial
- tomistoma schlegeli
- thanksgiving cactus
- tangible possession
- syzygium aromaticum
- syrian monetary unit
- swedish nightingale
- subversive activity
- stinking nightshade
- squirreltail barley
- spanish-american war
- social organization
- social organisation
- sir william herschel
- sir william chambers
- sir matthew flinders
- sir martin frobisher
- sir frederick ashton
- short-term liability
- setophaga ruticilla
- sergei rachmaninoff
- semilunar cartilage
- seismic disturbance
- scottish highlander
- scientific research
- scandinavian nation
- rheims-douay version
- respiratory illness
- republic of suriname
- republic of slovenia
- republic of maldives
- renaissance revival
- professional boxing
- posterior pituitary
- political dissident
- polish monetary unit
- pluvianus aegyptius
- planning commission
- piano transcription
- physiological state
- physical attraction
- parnassia palustris
- parainfluenza virus
- ostrya carpinifolia
- oscar hammerstein ii
- order sarcosporidia
- order ichthyosauria
- one thousand million
- on an irregular basis
- oil-industry analyst
- oceanites oceanicus
- nicolaus copernicus
- navigational system
- nautical signal flag
- national censorship
- narcotic antagonist
- musical composition
- minor tranquilliser
- meconopsis cambrica
- material possession
- magnoliopsid family
- macrozamia communis
- logistic assistance
- logistic assessment
- linguistic relation
- limenitis archippus
- licensing agreement
- liability insurance
- lepomis macrochirus
- lanius lucovicianus
- katherine mansfield
- karl friedrich gauss
- kalmia angustifolia
- jean baptiste racine
- james whitcomb riley
- isabella i of castile
- irvingia gabonensis
- intervertebral disk
- intervertebral disc
- interstitial tissue
- international scale
- installation charge
- infantile paralysis
- imperfective aspect
- hypostasis of christ
- historical document
- hindustani language
- hibiscus sabdariffa
- hibiscus cannabinus
- heat of vaporisation
- giambattista marino
- geophysical science
- genus citharichthys
- garcinia mangostana
- functional disorder
- fricative consonant
- frankliniella fusca
- federation of tribes
- family testudinidae
- family spirillaceae
- family sphyraenidae
- family scorpaenidae
- family scolopacidae
- family salviniaceae
- family physeteridae
- family muscicapidae
- family desmidiaceae
- family centriscidae
- essential condition
- essential amino acid
- erigeron canadensis
- elaeagnus latifolia
- economic assistance
- duck-billed dinosaur
- drafting instrument
- douay-rheims version
- dmitri shostakovich
- division eubacteria
- division cynodontia
- division anthophyta
- distinctive feature
- direct transmission
- dipsacus sylvestris
- diplomatic minister
- digitalis glycoside
- dasyurus viverrinus
- danish monetary unit
- dame sybil thorndike
- cyanocitta cristata
- crotalus mitchellii
- constantin brancusi
- commissaire maigret
- columbia university
- cognitive semantics
- class magnoliopsida
- circassian language
- chemical operations
- ceremonial occasion
- castanea mollissima
- carl wilhelm siemens
- carduelis carduelis
- carassius carassius
- capital of wisconsin
- capital of swaziland
- capital of minnesota
- capital of louisiana
- capital of indonesia
- capital of australia
- bush administration
- blue ridge mountains
- biological research
- berberis canadensis
- banana passion fruit
- baccharis pilularis
- authoritarian state
- australian lungfish
- augustinian hermits
- attestation service
- assyrian neo-aramaic
- aspalathus linearis
- artistic production
- arteria vertebralis
- artemisia filifolia
- armoracia rusticana
- areteria cervicalis
- antispasmodic agent
- antirrhinum filipes
- antipsychotic agent
- antineoplastic drug
- antagonistic muscle
- andrew dickson white
- ancylus fluviatilis
- anchusa officinalis
- anamnestic reaction
- analysis of variance
- amphibious aircraft
- amlodipine besylate
- american pulsatilla
- alpinia officinalis
- alexander i of russia
- air-to-ground missile
- ageratina altissima
- aegean civilisation
- administrative unit
- administrative body
- adenosine deaminase
- actinidia deliciosa
- zinc cadmium sulfide
- wisteria frutescens
- winter olympic games
- willie howard mays jr.
- william henry seward
- william henry hudson
- wilderness campaign
- wild sensitive plant
- whole life insurance
- west indian smallpox
- walter william skeat
- volumetric analysis
- virginia strawberry
- virginia serpentary
- viperine grass snake
- vinegar joe stilwell
- vigna sesquipedalis
- viaticus settlement
- viatical settlement
- vertical stabilizer
- verbesina virginica
- verbascum lychnitis
- vena supraorbitalis
- vena intercapitalis
- vena bulbi vestibuli
- vena appendicularis
- vascular hemophilia
- vaccinium stamineum
- vaccinium scoparium
- vaccinia gangrenosa
- unipolar depression
- typesetting machine
- tropical rain forest
- trogium pulsatorium
- trisodium phosphate
- tremella fuciformis
- transmission system
- transitive verb form
- transfiguration day
- transfer of training
- topical anaesthetic
- topical anaesthesia
- tobacco mosaic virus
- time deposit account
- time-and-motion study
- thermoplastic resin
- thermobia domestica
- theory of indicators
- thamnophis sirtalis
- thamnophis sauritus
- thamnophis proximus
- thalamostriate vein
- teucrium scorodonia
- tetraneuris acaulis
- territorial reserve
- terminable interest
- tarquinius superbus
- taraktogenos kurzii
- taraktagenos kurzii
- tanacetum douglasii
- takayasu's arteritis
- systema digestorium
- syrian arab republic
- symplocus tinctoria
- swiss confederation
- sutura internasalis
- suspended animation
- survivors insurance
- surgical instrument
- supra expressionism
- superior labial vein
- superfamily apoidea
- suillus albivelatus
- suicide squeeze play
- subsistence farming
- suborder tarsioidea
- suborder ruminantia
- suborder pinnipedia
- suborder mugiloidea
- suborder lacertilia
- submersible warship
- subgenus calliopsis
- subfamily triglinae
- subfamily sylviinae
- subfamily sterninae
- subfamily numidinae
- subfamily numididae
- subfamily dorylinae
- subfamily anserinae
- subclinical absence
- subclass dibranchia
- subclass cirripedia
- styphelia humifusum
- striped button quail
- strawberry daiquiri
- stratified sampling
- stratified language
- straight-line method
- stochastic variable
- stictopelia cuneata
- sterculia rupestris
- stellar association
- starvation acidosis
- stanford university
- stained-glass window
- st. ignatius of loyola
- spiranthes spiralis
- spartina pectinmata
- sparmannia africana
- spanish inquisition
- space-time continuum
- southern maidenhair
- solidago canadensis
- solar magnetic field
- solanum commersonii
- sodium thiosulphate
- sociological theory
- socio-economic class
- smilax rotundifolia
- sloanea jamaicensis
- six-lined racerunner
- sisymbrium barbarea
- sir ernst boris chain
- sir bernard williams
- sir alfred hitchcock
- single-breasted suit
- silphium laciniatum
- signal-to-noise ratio
- side-blotched lizard
- sidalcea malviflora
- siberian wall flower
- shortia galacifolia
- sexual relationship
- serratula tinctoria
- sentential function
- sensory deprivation
- selaginella eatonii
- segmentation cavity
- secondary dentition
- secobarbital sodium
- scopolia carniolica
- scolymus hispanicus
- saxifraga stellaris
- saxifraga hypnoides
- sarcophilus hariisi
- sapindus marginatus
- sao tome and principe
- sanskritic language
- sanskrit literature
- sample distribution
- salvinia auriculata
- salix alba vitellina
- salicornia europaea
- saint valentine's day
- saint thomas aquinas
- saint teresa of avila
- saint martin's summer
- saint lawrence river
- saint kitts and nevis
- saint francis xavier
- sacrifice operation
- sabbatia campestris
- right gastric artery
- rickettsial disease
- rhodesian ridgeback
- rhodanthe manglesii
- rhizomatous begonia
- rhizoctinia disease
- rhetorical question
- respiratory disease
- renal insufficiency
- remilegia australis
- relative atomic mass
- regression equation
- regression analysis
- registration number
- regional anesthesia
- real-time processing
- reactive depression
- reaction propulsion
- ratibida columnaris
- quercus marilandica
- quadriphonic system
- quadrigesima sunday
- pyrrhuloxia sinuata
- pyrophosphoric acid
- pylodictus olivaris
- pus-forming bacteria
- pupillary sphincter
- pulsatilla vulgaris
- publius ovidius naso
- public relations man
- public presentation
- pterocarpus indicus
- psychotria capensis
- psoriatic arthritis
- psittacus erithacus
- psidium cattleianum
- pseudotaxus chienii
- prunus angustifolia
- prospero lambertini
- prosopis juliiflora
- propositional logic
- professional tennis
- prionotus carolinus
- prince edward island
- prevailing westerly
- prairie rattlesnake
- prairie golden aster
- potentilla anserina
- potassium hydroxide
- positive chemotaxis
- positional notation
- poncirus trifoliata
- polystichum braunii
- polyphosphoric acid
- political scientist
- political commissar
- poinciana gilliesii
- poephila castanotis
- platanus orientalis
- platanus acerifolia
- pinus californiarum
- pimenta officinalis
- pierre-simon laplace
- physical distancing
- phragmites communis
- philaenus spumarius
- phasianus colchicus
- pezophaps solitaria
- peruvian mastic tree
- personal credit line
- persian gulf illness
- periodontal disease
- periarterial plexus
- peperomia sandersii
- peninsular malaysia
- pedilanthus pavonis
- pediculosis capitis
- pedestrian crossing
- parnassia fimbriata
- parkinsonia florida
- parathion poisoning
- paranthias furcifer
- paprilus alepidotus
- pancreatic fibrosis
- panax quinquefolius
- palestine authority
- oxytropis lambertii
- ornithopod dinosaur
- order ustilaginales
- order rickettsiales
- order polymastigina
- order mycrosporidia
- order haplosporidia
- order haemosporidia
- order coraciiformes
- opisthocomus hoazin
- old frisian language
- observation station
- normative economics
- normal distribution
- nonsocial infection
- non-christian priest
- nikolai lobachevsky
- nierembergia repens
- niemann-pick disease
- nicolaus zinzendorf
- nicholas ii of russia
- newtonian mechanics
- new siberian islands
- nemophila menziesii
- negative chemotaxis
- national assistance
- nasogastric feeding
- narcissus jonquilla
- myrica pensylvanica
- myositis trichinosa
- multiplication sign
- momordica balsamina
- molecular biologist
- minor diatonic scale
- minoan civilisation
- miniature schnauzer
- mineral association
- minato ohashi bridge
- military commission
- military censorship
- mikhail baryshnikov
- microscopic anatomy
- metaplastic anaemia
- metaphosphoric acid
- metal spinning lathe
- metabolic alkalosis
- mertensia virginica
- merovingian dynasty
- melospiza georgiana
- melissa officinalis
- melicocca bijugatus
- medical institution
- mason and dixon's line
- marta brigit nilsson
- marsilea drummondii
- marriage counseling
- mammillaria plumosa
- malathion poisoning
- malacosoma disstria
- major tranquilliser
- major diatonic scale
- magneto-optical disc
- magnesium hydroxide
- macrozamia spiralis
- machine translation
- lysimachia vulgaris
- lysimachia ciliatum
- lysiloma bahamensis
- lucius dubignon clay
- loxostege similalis
- louis henry sullivan
- louis henri sullivan
- lonicera canadensis
- lobelia siphilitica
- livistona australis
- litocranius walleri
- listeria meningitis
- lip synchronization
- lip synchronisation
- limnocryptes minima
- lilium michiganense
- ligustrum japonicum
- libyan islamic group
- lepiota cepaestipes
- legislative council
- learning disability
- learner's dictionary
- leaning tower of pisa
- lathyrus latifolius
- late-spring-blooming
- land-office business
- lagenaria siceraria
- lactarius delicioso
- kolkwitzia amabilis
- kingdom protoctista
- kingdom of swaziland
- king charles spaniel
- keratosis nigricans
- karl wilhelm siemens
- kammon strait bridge
- junction transistor
- jumping bristletail
- juglans californica
- judicial separation
- juan carlos i of spain
- josiah willard gibbs
- joseph paul dimaggio
- joint chiefs of staff
- jessica lucy mitford
- jean francois millet
- jasminum officinale
- jasminum nudiflorum
- japanese poinsettia
- jacksonian epilepsy
- ivan iii vasilievich
- italian renaissance
- italian honeysuckle
- isopyrum biternatum
- iron-storage disease
- ipomoea orizabensis
- ionization constant
- intravenous feeding
- interstellar medium
- internal combustion
- intermediate shroud
- intergalactic space
- interfacial tension
- insider information
- inorganic phosphate
- inorganic chemistry
- information science
- information measure
- inflectional suffix
- inflationary spiral
- inductive reasoning
- indri brevicaudatus
- indigenous language
- in your birthday suit
- in one's birthday suit
- ilex paraguariensis
- idiopathic disorder
- idiographic science
- hysterical neurosis
- hypoplastic anaemia
- hypophosphoric acid
- huntington's disease
- hundred-and-sixtieth
- homo sapiens sapiens
- hindu kush mountains
- hindostani language
- himalayish language
- hexalectris spicata
- hesperis matronalis
- herpes encephalitis
- hermann emil fischer
- heinrich schliemann
- hedeoma pulegioides
- heat-seeking missile
- heat of dissociation
- hawaii standard time
- have the distinction
- harry sinclair lewis
- halocarpus bidwilli
- halicoeres radiatus
- haematobia irritans
- guilt by association
- grindelia squarrosa
- grievous bodily harm
- graduation exercise
- gradable opposition
- gilbert and sullivan
- giant red paintbrush
- giannangelo braschi
- gianbattista bodoni
- giambattista marini
- giambattista bodoni
- giacomo della chiesa
- geostationary orbit
- genus septobasidium
- genus schizachyrium
- genus phragmipedium
- genus paphiopedilum
- genus micropogonias
- genus hyacinthoides
- genus frankliniella
- genus falcatifolium
- genus dieffenbachia
- genus dicranopteris
- genus chorizagrotis
- genus bougainvillea
- genus armillariella
- genus armadillidium
- genus argyroxiphium
- genus archidiskidon
- genus actiniopteris
- genital personality
- generalized seizure
- gavialis gangeticus
- gastroepiploic vein
- functional genomics
- fumaria officinalis
- fuchsia excorticata
- fritillaria affinis
- francois mitterrand
- fragaria chiloensis
- florida selaginella
- flat tip screwdriver
- finno-ugric-speaking
- financial statement
- female circumcision
- favourable position
- fausto paolo sozzini
- family xenosauridae
- family synodontidae
- family syngnathidae
- family stromateidae
- family spheniscidae
- family sphaeriaceae
- family sillaginidae
- family scutigeridae
- family schizaeaceae
- family scarabaeidae
- family rhiptoglossa
- family relationship
- family ramphastidae
- family plasmodiidae
- family orchestiidae
- family nephropsidae
- family musophagidae
- family marsileaceae
- family lepismatidae
- family gobiesocidae
- family gesneriaceae
- family erysiphaceae
- family equisetaceae
- family ceratopsidae
- family catostomidae
- family brassicaceae
- family aulostomidae
- family aspleniaceae
- family ambrosiaceae
- family alismataceae
- fairness commission
- eurasian kingfisher
- euclid's second axiom
- euclid's fourth axiom
- eucharistic liturgy
- equine encephalitis
- epidural anesthesia
- epacris obtusifolia
- english hippocrates
- emil hermann fischer
- electrostatic field
- electric resistance
- eichhornia spesiosa
- edwin dubois hayward
- ecclesiastical robe
- ecclesiastical mode
- eastern indigo snake
- eastern catholicism
- east indian rosewood
- dryopteris goldiana
- dryopteris filix-mas
- dryopteris dilatata
- domesticated animal
- doctor of humanities
- division rhodophyta
- division phaeophyta
- division myxomycota
- division cyanophyta
- diversionary attack
- district of columbia
- dissociation energy
- dispersed particles
- disorderly behavior
- dishwashing machine
- discretionary trust
- dioscorea bulbifera
- digitaria ischaemum
- dicentra canadensis
- dianthus latifolius
- devil's walking stick
- descurainia pinnata
- descriptive grammar
- delusional disorder
- deflationary spiral
- deductive reasoning
- daylight-saving time
- dalbergia cearensis
- cupressus arizonica
- crystallized ginger
- criminal possession
- crataegus apiifolia
- corticospinal tract
- corrosive sublimate
- coronavirus disease
- cornelius jansenius
- coreopsis tinctoria
- cordyline australis
- coptis groenlandica
- conversion reaction
- conversion hysteria
- convallaria majalis
- continuing trespass
- contagious abortion
- connarus guianensis
- conjugal visitation
- congenital disorder
- computer simulation
- competitor analysis
- communist manifesto
- colinus virginianus
- clinical psychology
- clinical depression
- climbing salamander
- climbing nightshade
- clianthus speciosus
- clematis virginiana
- clematis versicolor
- cleistes divaricata
- classical philology
- classical mechanics
- class hepaticopsida
- class ginkgophytina
- class coniferopsida
- class archiannelida
- citrus aurantifolia
- citellus variegatus
- cirsium lanceolatum
- circis siliquastrum
- cimicifuga racemosa
- christian scientist
- christian schonbein
- choriotis australis
- chi-square statistic
- chelifer cancroides
- cheilanthes eatonii
- charles william post
- charles vii of france
- charles ii of england
- chamaemelum nobilis
- cerebrospinal fluid
- cercis occidentalis
- ceratotherium simum
- cerapteryx graminis
- celtis occidentalis
- celestial mechanics
- celestial longitude
- celestial hierarchy
- catherine i of russia
- catherine de medicis
- cassia occidentalis
- cassia augustifolia
- carolingian dynasty
- carl friedrich gauss
- carissa grandiflora
- carduelis cannabina
- cardigan welsh corgi
- cardamine pratensis
- cardamine douglasii
- capparis mitchellii
- capital of singapore
- capital of san marino
- capital of costa rica
- canalis vertebralis
- camassia scilloides
- calvinistic baptist
- calostoma ravenelii
- callorhinus ursinus
- callitris calcarata
- callinectes sapidus
- california sycamore
- california allspice
- calidris ferruginea
- burmeisteria retusa
- bucephala islandica
- bubalus mindorensis
- brush-tail porcupine
- broadcasting studio
- british thermal unit
- british labour party
- bristly sarsparilla
- brevoortia tyrannis
- brassica perviridis
- bougainville island
- born-again christian
- blindstitch machine
- blind stitch machine
- bissau-guinean franc
- bird-footed dinosaur
- billion-dollar grass
- bidens trichosperma
- bering standard time
- bastard lignum vitae
- barbados maidenhair
- automobile industry
- autoimmune disorder
- autoimmune diabetes
- auriparus flaviceps
- attractive nuisance
- asterid dicot family
- associative aphasia
- associate in nursing
- aspidelaps lubricus
- asian tiger mosquito
- asclepias incarnata
- arteria mesenterica
- arteria ethmoidalis
- arteria epigastrica
- arteria communicans
- arteria auricularis
- artemisia abrotanum
- aristotelia serrata
- aristolochia durior
- arisaema triphyllum
- arisaema dracontium
- applied mathematics
- apothecaries' weight
- antarctic peninsula
- anolis carolinensis
- anointing of the sick
- anoa depressicornis
- annona diversifolia
- anion-exchange resin
- anguilla sucklandii
- angoumois grain moth
- angelica sylvestris
- anarchist communism
- alsophila pometaria
- alnus veridis crispa
- alice-josephine pons
- albizia julibrissin
- alan mathison turing
- al-gama'a al-islamiyya
- ailanthus altissima
- agitated depression
- agelaius phoeniceus
- agaricus campestris
- aegilops triuncalis
- admiralty mountains
- acute brain disorder
- active matrix screen
- actinidia chinensis
- acoustic resistance
- acoustic projection
- acoustic absorption
- abudefduf saxatilis
