20-Letter Words Containing: A,E,O,R
(In Any Order)
There are 105 20 letter words,
942 20 letter phrases and
0 20 letter abbr's with
A,E,O,R in.
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| Word | Save | Length | Usage | Points | Type | ||
|---|---|---|---|---|---|---|---|
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All 20 Letter Words
Words (105)
- counterrevolutionary
- compartmentalization
- overenthusiastically
- hypercholesterolemia
- tetrahydrocannabinol
- internationalization
- electroencephalogram
- unsatisfactorinesses
- underrepresentations
- ultrasegregationists
- ultrarevolutionaries
- ultracentrifugations
- syncategorematically
- superspecializations
- spectrophotometrical
- spectroheliographies
- roentgenographically
- representationalists
- representationalisms
- reinstitutionalizing
- reindustrializations
- reconceptualizations
- radiopharmaceuticals
- radioimmunoassayable
- psychopharmacologies
- pseudoparenchymatous
- pseudocholinesterase
- professionalizations
- plethysmographically
- photoreconnaissances
- photointerpretations
- photodisintegrations
- phosphomonoesterases
- phosphofructokinases
- phosphoenolpyruvates
- phenylthiocarbamides
- phenylpropanolamines
- parathyroidectomized
- paradichlorobenzenes
- paleoanthropologists
- overintellectualizes
- overintellectualized
- overdifferentiations
- neuropsychiatrically
- neurophysiologically
- neuropharmacologists
- neuropharmacological
- mischaracterizations
- microphotometrically
- micropaleontologists
- micropaleontological
- microcrystallinities
- lymphogranulomatoses
- keratoconjunctivites
- irreproachablenesses
- irreconcilablenesses
- interstratifications
- inconsiderablenesses
- incommensurabilities
- immunoprecipitations
- hyperparathyroidisms
- hypercoagulabilities
- hydrochlorothiazides
- extemporaneousnesses
- encephalomyocarditis
- electroretinographic
- electrophysiological
- electrophotographies
- electrooculographies
- dimethylnitrosamines
- departmentalizations
- deindustrializations
- dehydrochlorinations
- cytodifferentiations
- countertransferences
- countersurveillances
- countermobilizations
- counterdemonstrators
- counterdemonstrating
- chlorofluoromethanes
- chemotherapeutically
- bacteriochlorophylls
- anticonservationists
- anthropocentricities
- adrenocorticotropins
- adrenocorticosteroid
- acetylcholinesterase
- semiautobiographical
- pseudohermaphroditic
- paleoanthropological
- oophorosalpingectomy
- nephroangiosclerosis
- magnetohydrodynamics
- keratoconjunctivitis
- internationalisation
- hyperlipoproteinemia
- hyperadrenocorticism
- heterobasidiomycetes
- electrocardiographic
- destructive-metabolic
- counterdemonstration
- compartmentalisation
- adrenocorticotrophin
- adrenocorticotrophic
- abetalipoproteinemia
Phrases (942)
- yellow-shafted flicker
- william le baron jenney
- william henry harrison
- wallace hume carothers
- virgil garnett thomson
- vena brachiocephalica
- varicella zoster virus
- valvular incompetence
- university of nebraska
- unabridged dictionary
- ukranian monetary unit
- two-dimensional figure
- tunisian monetary unit
- tumour necrosis factor
- transportation system
- tibeto-burman language
- thomas lanier williams
- theatrical production
- temperature reduction
- susan brownell anthony
- superfamily coccoidea
- subclass lepidosauria
- subclass entomostraca
- stephen butler leacock
- sphenisciform seabird
- southern united states
- south american country
- software optimization
- social justice warrior
- sir karl raimund popper
- sir james george frazer
- sir charles wheatstone
- simple harmonic motion
- signature recognition
- sense of right and wrong
- selective information
- sedative-hypnotic drug
- second lateran council
- scomberomorus regalis
- scomberomorus cavalla
- samuel rawson gardiner
- saint peter the apostle
- round-table conference
- romanian monetary unit
- robert william service
- rhizopogon idahoensis
- requirements contract
- republic of madagascar
- republic of kazakhstan
- republic of el salvador
- quantitative relation
- psychological feature
- protective embankment
- protective coloration
- professional relation
- principle of parsimony
- poor man's weatherglass
- politically incorrect
- political orientation
- plasminogen activator
- pierre simon de laplace
- phylogenetic relation
- photographic emulsion
- peruvian monetary unit
- personality inventory
- personal relationship
- permanganate of potash
- pelecanus onocrotalus
- past progressive tense
- para aminobenzoic acid
- paleo-american culture
- order myxobacteriales
- order mycelia sterilia
- order heterotrichales
- order actinomycetales
- order accipitriformes
- nutritionist's calorie
- nigerian monetary unit
- nicolas de malebranche
- neisseria gonorrhoeae
- nasturtium officinale
- multilinear evolution
- moroccan monetary unit
- moldovan monetary unit
- milton snavely hershey
- metallographic sample
- mental representation
- mathematical relation
- master of architecture
- market capitalisation
- malawian monetary unit
- magnetic bubble memory
- luscinia megarhynchos
- lunar excursion module
- ludwig mies van der rohe
- lebanese monetary unit
- law enforcement agency
- lateral epicondylitis
- large magellanic cloud
- john kenneth galbraith
- japanese stranglehold
- japanese monetary unit
- james harold doolittle
- islamic calendar month
- interrogative pronoun
- interphalangeal joint
- information gathering
- indirect transmission
- hyperoodon ampullatus
- hundred-and-forty-fifth
- hugo alvar henrik aalto
- honduran monetary unit
- henry rowe schoolcraft
- henri toulouse-lautrec
- hawaiian honeycreeper
- hans christian oersted
- government department
- glycerol tripalmitate
- gleditsia triacanthos
- giovanni da verrazzano
- georges henri lemaitre
- george frideric handel
- georg philipp telemann
- geographic expedition
- genus campylorhynchus
- gaultheria procumbens
- friendly relationship
- frederico garcia lorca
- frankenstein's monster
- fouquieria columnaris
- flagellated protozoan
- federation of malaysia
- father of the submarine
- family tetraodontidae
- family passifloraceae
- family myrmeleontidae
- family gasterosteidae
- family dermochelyidae
- family antilocapridae
- euphorbia pulcherrima
- euphorbia cyathophora
- estonian monetary unit
- emotional disturbance
- eleocharis acicularis
- electric refrigerator
- egyptian monetary unit
- edward williams morley
- dwarf flowering almond
- division tracheophyta
- displacement reaction
- dictionary definition
- demonstrative pronoun
- degenerative disorder
- dean gooderham acheson
- dandie dinmont terrier
- cross-florida waterway
- cortinarius violaceus
- contradiction in terms
- conservation of matter
- consecutive operation
- computer architecture
- comparative anatomist
- common european earwig
- commercial instrument
- commercial enterprise
- closure by compartment
- clarence malcolm lowry
- charadrius morinellus
- centropus phasianinus
- catasetum macrocarpum
- case-to-infection ratio
- carter administration
- carson smith mccullers
- caprimulgus vociferus
- caprimulgus europaeus
- capital of switzerland
- capital of sierra leone
- capital of rhode island
- byelorussian language
- business relationship
- business organization
- business organisation
- botswana monetary unit
- botaurus lentiginosus
- bolivian monetary unit
- bernard law montgomery
- benjamin henry latrobe
- behavior modification
- barthold georg niebuhr
- baron snow of leicester
- balaenoptera physalus
- austrian monetary unit
- australian bonytongue
- atmospheric condition
- artemisia californica
- armenian monetary unit
- archeological remains
- appendicular skeleton
- apium graveolens dulce
- antilocapra americana
- anna eleanor roosevelt
- anemopsis californica
- amyloid protein plaque
- american harvest mouse
- american football game
- amelanchier alnifolia
- ambystomid salamander
- ambrose gwinett bierce
- ambloplites rupestris
- alice malsenior walker
- algerian monetary unit
- alfred north whitehead
- alexander iii of russia
- alessandro cagliostro
- albanian monetary unit
- aimee semple mcpherson
- agropyron intermedium
- ageratum houstonianum
- acquisition agreement
- abbott lawrence lowell
- zanthoxylum fraxineum
- yurak-samoyed language
- yosemite national park
- yellow-throated marten
- yellow-blue dichromacy
- xeroderma pigmentosum
- xenorhyncus asiaticus
- xanthosoma atrovirens
- written communication
- world trade center site
- workmen's compensation
- woolsorter's pneumonia
- woodrow charles herman
- wire-haired fox terrier
- wind cave national park
- william frederick cody
- william felton russell
- willard van orman quine
- wilhelm konrad rontgen
- white-throated sparrow
- volvariella bombycina
- vitelline circulation
- viola reichenbachiana
- vesicoureteral reflux
- vermillion flycatcher
- verbesina encelioides
- vena supratrochlearis
- vena labialis superior
- vena labialis inferior
- vena facialis anterior
- vena cerebrum superior
- van de graaff generator
- valerianella olitoria
- valeriana officinalis
- ustilaginoidea virens
- university of michigan
- universal proposition
- universal product code
- universal gas constant
- united states congress
- united states air force
- ungradable opposition
- underwater archeology
- ultraviolet radiation
- typhoid bacteriophage
- twelve tribes of israel
- tropical pitcher plant
- tropaeolum peregrinum
- triostium perfoliatum
- trichosurus vulpecula
- trichomanes speciosum
- trichomanes reniforme
- tribromoethyl alcohol
- transversus abdominis
- traditional knowledge
- track-to-track seek time
- toy manchester terrier
- toxic industrial waste
- torpedo-boat destroyer
- tonsilla pharyngealis
- tongue and groove joint
- tobias george smollett
- thysanopterous insect
- three-banded armadillo
- thomas edward lawrence
- third battle of panipat
- thermonuclear warhead
- thermonuclear reactor
- thermionic vacuum tube
- theory of preformation
- theory of dissociation
- theodore francis powys
- the admirable crichton
- temporal lobe epilepsy
- television-camera tube
- television newscaster
- taurotragus derbianus
- tartarian honeysuckle
- tarchanoff phenomenon
- tanacetum camphoratum
- talker identification
- systeme international
- systema respiratorium
- synchronous operation
- symplocarpus foetidus
- sympathetic vibration
- swietinia macrophylla
- survival of the fittest
- support vector machine
- superior labial artery
- superior cerebral vein
- superfamily tineoidea
- superfamily muscoidea
- sudanese monetary unit
- subornation of perjury
- suborder sciuromorpha
- suborder prosauropoda
- suborder plesiosauria
- suborder heterostraci
- suborder cephalaspida
- suborder anthropoidea
- subliminal perception
- subfamily hydromyinae
- subclass telosporidia
- subclass exopterygota
- strawberry hemangioma
- stomatopod crustacean
- stock-purchase warrant
- stephen arnold douglas
- steatornis caripensis
- statistical procedure
- staffordshire terrier
- st. gregory of nazianzen
- st. edward the confessor
- spodoptera frugiperda
- split-half correlation
- spiranthes porrifolia
- special-interest group
- spartina cynosuroides
- south american sea lion
- source of illumination
- somatotrophic hormone
- somatic sensory system
- somalian monetary unit
- solidago sempervirens
- solid-propellant motor
- soleirolia soleirolii
- solanum melanocerasum
- software optimisation
- sodium orthophosphate
- sodium lauryl sulphate
- social security number
- smiledon californicus
- sisymbrium officinale
- sir james young simpson
- sir harold walter kroto
- sinusoidal projection
- single-propeller plane
- siderochrestic anemia
- sideroblastic anaemia
- short-billed marsh wren
- sexual discrimination
- senior master sergeant
- semiautomatic firearm
- secretary of education
- second earl of guilford
- seborrheic dermatitis
- scutigera coleoptrata
- scleroderma flavidium
- scleroderma aurantium
- scintillation counter
- schizopetalon walkeri
- scabiosa atropurpurea
- saxifraga stolonifera
- saxifraga sarmentosam
- sanvitalia procumbens
- sanitation department
- salpichroa rhomboidea
- rubus idaeus strigosus
- round-spored gyromitra
- rocky mountains cherry
- rocky mountain dogbane
- robert charles venturi
- riot control operation
- richard burdon haldane
- reverberatory furnace
- respiratory infection
- respiratory alkalosis
- required reserve ratio
- republic of uzbekistan
- republic of tajikistan
- republic of mozambique
- religious orientation
- recreational facility
- reconnaissance by fire
- reciprocal inhibition
- reagan administration
- rank-order correlation
- rabbit-eared bandicoot
- quercus grosseserrata
- quercus ellipsoidalis
- queensland bottletree
- pyroelectric material
- pyridoxine 5'-phosphate
- pyramidal motor system
- purse-string operation
- publius vergilius maro
- pterocarpus marsupium
- psychopsis krameriana
- psychology department
- psychological warfare
- pseudococcus fragilis
- professional football
- professional baseball
- private security force
- principality of achaea
- prince-of-wales feather
- prince fumimaro konoye
- price-to-earnings ratio
- premenstrual syndrome
- premature ejaculation
- potassium bicarbonate
- posttraumatic amnesia
- posterior labial veins
- postal rate commission
- positive-degree adverb
- populus grandidentata
- popular struggle front
- political correctness
- poinciana pulcherrima
- podocarpus ferruginea
- pleuronectes platessa
- plectrophenax nivalis
- platycerium alcicorne
- platte river penstemon
- platanthera leucophea
- pityrogramma argentea
- piptadenia macrocarpa
- pilularia globulifera
- pilosella officinarum
- piezoelectric crystal
- phylloxera vitifoleae
- phototrophic bacteria
- photographic material
- philosophy department
- philip warren anderson
- philip dormer stanhope
- phaseolus multiflorus
- personal line of credit
- peronospora hyoscyami
- peritonsillar abscess
- perisoreus canadensis
- penstemon linarioides
- pellicularia koleroga
- particulate radiation
- parietomastoid suture
- parietal placentation
- paper electrophoresis
- papaver heterophyllum
- pagellus centrodontus
- pachyrhizus tuberosus
- oxyuranus scutellatus
- over-the-counter market
- oscar palmer robertson
- ortilis vetula macalli
- orthodontic treatment
- organic brain syndrome
- oreortyx picta palmeri
- order sphaerocarpales
- order scrophulariales
- order rhynchocephalia
- order pseudomonadales
- order pectinibranchia
- order of saint benedict
- order mycoplasmatales
- order lepidodendrales
- order jungermanniales
- order hymenogastrales
- order cycadofilicales
- order cilioflagellata
- order charadriiformes
- order blastocladiales
- order aristolochiales
- order aphyllophorales
- orange mushroom pimple
- ophthalmia neonatorum
- operation desert storm
- one-hundred-thousandth
- omnidirectional range
- old world white pelican
- old bulgarian language
- oceanic whitetip shark
- obtuse-angled triangle
- object of a preposition
- nurse-patient relation
- nuclear power industry
- notropis atherinoides
- northern united states
- northern snow bedstraw
- northern jacob's ladder
- north island edelweiss
- north american country
- norethindrone acetate
- nonviolent resistance
- nonrestrictive clause
- nonlinear correlation
- non-euclidean geometry
- niels henrik david bohr
- new york stock exchange
- neurological disorder
- nerve block anesthesia
- nephrolepis pectinata
- nepalese monetary unit
- neoceratodus forsteri
- negotiable instrument
- necrobiosis lipoidica
- narthecium ossifragum
- narrow-leaved reedmace
- narrow-leaved plantain
- myrmecobius fasciatus
- musculophrenic artery
- mumification necrosis
- multichannel recorder
- mountain standard time
- mountain lady's slipper
- mortise-and-tenon joint
- morchella angusticeps
- monardella lanceolata
- modified american plan
- modern hebrew language
- mock turtleneck collar
- mistletoe rubber plant
- mildred ella didrikson
- migratory grasshopper
- micropterus salmoides
- metrazol shock therapy
- method of least squares
- meriones unguiculatus
- menyanthes trifoliata
- mediterranean anchovy
- maximilian's sunflower
- masticophis lateralis
- maryland yellowthroat
- marketing information
- market capitalization
- marginal placentation
- marcus terentius varro
- manhattan clam chowder
- maidenhair spleenwort
- magnesium bicarbonate
- macronectes giganteus
- macroclemys temmincki
- macrocheira kaempferi
- lysichiton americanum
- lymphopathia venereum
- luis de gongora y argote
- low-birth-weight infant
- lonicera sempervirens
- lonicera periclymenum
- little lord fauntleroy
- liberal democrat party
- left atrium of the heart
- lecture demonstration
- leave no stone unturned
- lawyer-client relation
- lautaro youth movement
- laurence stephen lowry
- lasthenia chrysostoma
- lanceolate spleenwort
- laminar flow clean room
- lambert-eaton syndrome
- laguncularia racemosa
- kosteletzya virginica
- kinetic theory of gases
- ketosis-prone diabetes
- kenneth bancroft clark
- kennedy international
- kaspar friedrich wolff
- karen danielsen horney
- judge advocate general
- journalist's privilege
- joseph warren stilwell
- joseph rudyard kipling
- john augustus roebling
- jaundice of the newborn
- japanese morning glory
- james douglas morrison
- iron deficiency anemia
- intravenous pyelogram
- intravenous injection
- intransitive verb form
- intradermal injection
- international affairs
- internal auditory vein
- intellectual property
- inferior labial artery
- inferior cerebral vein
- industrial revolution
- induction accelerator
- indo-european language
- igor yevgeneevich tamm
- identity verification
- hypothetical creature
- hypericum androsaemum
- hymenoxys grandiflora
- hylactophryne augusti
- hygrophorus caeruleus
- hygrocybe acutoconica
- hydrangea arborescens
- hyacinthus orientalis
- horizontal stabilizer
- horizontal stabiliser
- home theater projector
- hippodamia convergens
- hibiscus rosa-sinensis
- hexalectris warnockii
- heterodyne oscillator
- heteroclitic antibody
- herschelian telescope
- hermann wilhelm goring
- heritiera macrophylla
- heracleum sphondylium
- hendrik antoon lorentz
- hemlock water dropwort
- helleborus orientalis
- heliocentric parallax
- helianthus petiolaris
- heat of transformation
- harpullia cupanioides
- hare's-foot bristle fern
- halicoeres bivittatus
- haemulon aurolineatum
- gutierrezia sarothrae
- gustav theodor fechner
- guillaume apollinaire
- guernsey monetary unit
- griselinia littoralis
- gridiron-tailed lizard
- greatest common factor
- greater peritoneal sac
- granulocytic leukemia
- graeco-roman wrestling
- gonadotrophic hormone
- golden-beard penstemon
- gnaeus julius agricola
- glycerol trimargarate
- glucose tolerance test
- glenn theodore seaborg
- glaucous bristlegrass
- glandular labrador tea
- giovanni schiaparelli
- giovanni di bernardone
- geranium richardsonii
- georgian monetary unit
- georges jacques danton
- george william russell
- georg friedrich handel
- geoffroea decorticans
- genus truncocolumella
- genus trachelospermum
- genus tabernaemontana
- genus pithecanthropus
- genus megalobatrachus
- genus gymnosporangium
- genus grammatophyllum
- genus gorgonocephalus
- genus entandrophragma
- genus cryptacanthodes
- genus corynebacterium
- genus aspidophoroides
- genus argentinosaurus
- gastrophryne olivacea
- gamma hydroxybutyrate
- galvanic skin response
- galeorhinus zyopterus
- functional illiterate
- friedrich anton mesmer
- frederic william goudy
- francesco della rovere
- fourth lateran council
- form genus rhizoctinia
- floating exchange rate
- flindersia schottiana
- flat-topped white aster
- fixed-combination drug
- first council of nicaea
- first battle of bull run
- first baron rutherford
- file transfer protocol
- fibrous-rooted begonia
- fetal alcohol syndrome
- ferdinand the catholic
- fenestra of the cochlea
- family trichodontidae
- family titanosauridae
- family thelephoraceae
- family tetragoniaceae
- family strophariaceae
- family stercorariidae
- family scyliorhinidae
- family scombresocidae
- family rhodymeniaceae
- family rhizophoraceae
- family rhinocerotidae
- family rhincodontidae
- family procellariidae
- family porcellionidae
- family pontederiaceae
- family pleuronectidae
- family peripatopsidae
- family ostraciontidae
- family micrococcaceae
- family melampsoraceae
- family megalosauridae
- family lophosoriaceae
- family kalotermitidae
- family hypodermatidae
- family hyperodontidae
- family hygrophoraceae
- family hydrochoeridae
- family hipposideridae
- family helodermatidae
- family haloragidaceae
- family haemoproteidae
- family gonorhynchidae
- family globigerinidae
- family fouquieriaceae
- family flacourtiaceae
- family erethizontidae
- family elaeocarpaceae
- family edaphosauridae
- family cryptocercidae
- family cortinariaceae
- family chloranthaceae
- family ceratodontidae
- family caprifoliaceae
- family batrachoididae
- family bacteroidaceae
- family athiorhodaceae
- executor-heir relation
- european quaking aspen
- european pasqueflower
- european house cricket
- european black currant
- euproctis phaeorrhoea
- euphorbia helioscopia
- euphorbia cyparissias
- eupatorium cannabinum
- eucalyptus pauciflora
- eucalyptus citriodora
- eucalypt tereticornis
- estraterrestrial body
- escalope de veau orloff
- erythronium dens-canis
- erythrina vespertilio
- erigonum fasciculatum
- eragrostic abyssinica
- equality before the law
- epipactis helleborine
- environmental science
- enteric-coated aspirin
- english cocker spaniel
- endometrial carcinoma
- emmanthe penduliflora
- electrostatic printer
- electrostatic machine
- electronic transistor
- electronic dictionary
- electrical phenomenon
- electrical conduction
- edward douglas white jr.
- eczema hypertrophicum
- echinochloa crusgalli
- echinocactus grusonii
- eaton-lambert syndrome
- dwarf golden chinkapin
- duke of argyll's tea tree
- dryopteris marginalis
- drumhead court-martial
- dramatic mezzo-soprano
- doubly transitive verb
- double-propeller plane
- double-breasted jacket
- doctoral dissertation
- doctor of public health
- division pteridophyta
- dissociative disorder
- disassortative mating
- dionysius i of syracuse
- dilation and curettage
- differential equation
- diapheromera femorata
- department of commerce
- deoxyribonucleic acid
- demand for explanation
- defensive attribition
- david alfaro siqueiros
- darkling groung beetle
- dante gabriel rossetti
- daniel ortega saavedra
- dangerous undertaking
- dalbergia stevensonii
- cystopteris bulbifera
- cypripedium calceolus
- cyperus alternifolius
- cyclamen hederifolium
- cyamopsis psoraloides
- curly-coated retriever
- cruciferous vegetable
- croatian monetary unit
- criminal conversation
- crataegus biltmoreana
- count alessandro volta
- coumarone-indene resin
- cottrell precipitator
- corypha umbraculifera
- coronary heart disease
- coral-root bittercress
- copperplate engraving
- convergent strabismus
- continental breakfast
- conte alessandro volta
- constantine i of greece
- constant acceleration
- conservation of parity
- conservation of energy
- conservation of charge
- congregational church
- congratulatory letter
- compensatory spending
- compact disc write-once
- common snapping turtle
- common carline thistle
- commodore barry bridge
- command sergeant major
- command line interface
- combretum appiculatum
- colorimetric analysis
- colorado potato beetle
- collegiate dictionary
- collective bargaining
- clustered poppy mallow
- close-quarter fighting
- clopidogrel bisulfate
- clintonia andrewsiana
- clarence seward darrow
- clandestine operation
- citrophilous mealybug
- cistothorus platensis
- chronic kidney failure
- chloroxylon swietenia
- chinese black mushroom
- chemnitzer concertina
- check overdraft credit
- charles robert redford
- charles dillon stengel
- cervical root syndrome
- cervical disc syndrome
- certificate of deposit
- cephalopterus ornatus
- central nervous system
- centaurium scilloides
- celastrus orbiculatus
- castanea chrysophylla
- caspar friedrich wolff
- carpal tunnel syndrome
- carolina spring beauty
- cardiovascular system
- cardiac resuscitation
- campanula aparinoides
- callirhoe triangulata
- callirhoe involucrata
- california false morel
- brush-tailed porcupine
- brugmansia suaveolens
- broad-leaved twayblade
- broad leaved goldenrod
- boy orator of the platte
- bosnia and herzegovina
- bluethroat pikeblenny
- blastodermic vessicle
- black-footed albatross
- black peppercorn vodka
- bittersweet chocolate
- biscayne national park
- bioelectric potential
- begonia semperflorens
- begonia heracleifolia
- begonia erythrophylla
- battle of hampton roads
- basal body temperature
- bartolommeo eustachio
- baroness emmusca orczy
- balaenoptera musculus
- balaenoptera borealis
- background processing
- bachelor of literature
- aversive conditioning
- austronesian language
- australian turtledove
- australian coral snake
- atrioventricular node
- astreus hygrometricus
- asplenium trichomanes
- asplenium platyneuron
- asparagus officinales
- asarum shuttleworthii
- artery of the penis bulb
- artery of the labyrinth
- arteria intercostalis
- artemisia ludoviciana
- artemisia gnaphalodes
- artaxerxes ii of persia
- army of the confederacy
- armored combat vehicle
- arenaria groenlandica
- ardisia escallonoides
- arctic ground squirrel
- arceuthobium pusillum
- aposematic coloration
- apalachicola rosemary
- antitrust legislation
- antihemophilic factor
- anterior cerebral vein
- anterior cardinal vein
- anogramma leptophylla
- angle-closure glaucoma
- andrew jackson downing
- american pasqueflower
- alexander archipelago
- aldrovanda vesiculosa
- airborne transmission
- air force space command
- agropyron subsecundum
- agricultural labourer
- aglaomorpha meyeniana
- african bowstring hemp
- affine transformation
- aeronautical engineer
- adverbial of condition
- abdominal nerve plexus
- 2-methylpropenoic acid
