16-Letter Words Containing: A,T,A,O,_
(In Any Order)
There are 441 16 letter words,
848 16 letter phrases and
0 16 letter abbr's with
A,T,A,O,_ in.
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| Word | Save | Length | Usage | Points | Type | ||
|---|---|---|---|---|---|---|---|
We couldn't find any valid Scrabble US words with a length of 16. Try changing the version of the game.
Tip: Scrabble EU allows far more words than US! | |||||||
All 16 Letter Words
Words (441)
- disqualification
- autobiographical
- gastrointestinal
- transilluminator
- transcontinental
- characterization
- misappropriation
- australopithecus
- catastrophically
- representational
- psychoanalytical
- unapologetically
- interpretational
- denaturalization
- trichotillomania
- thermostatically
- palaeontological
- nonparticipation
- journalistically
- demineralization
- collaborationist
- sensationalistic
- reclassification
- compartmentalize
- characterisation
- transformational
- ophthalmological
- photographically
- parapsychologist
- internationalist
- gastroesophageal
- decentralization
- conversationally
- collaborationism
- authoritarianism
- weatherboardings
- vascularizations
- universalization
- unaffectionately
- unaccountability
- ultrasonographic
- ultrasonographer
- ultraparadoxical
- ultranationalist
- ultramarathoners
- ultrafiltrations
- transportational
- transportability
- transplantations
- transnationalism
- transliterations
- transfigurations
- traditionalizing
- tracheobronchial
- totalitarianizes
- totalitarianized
- totalitarianisms
- tetrahydrofurans
- teratocarcinomas
- technicalization
- systematizations
- syllabifications
- supranationality
- supranationalist
- supranationalism
- supersaturations
- subvocalizations
- suburbanizations
- suborganizations
- subcontraoctaves
- straightforwards
- stenographically
- standardizations
- spatiotemporally
- sesquicarbonates
- sensationalizing
- sensationalising
- semiabstractions
- saccharification
- romanticizations
- revisualizations
- retransformation
- retinoblastomata
- resocializations
- requalifications
- reprivatizations
- reorganizational
- renormalizations
- regionalizations
- recontaminations
- rechromatography
- rechromatographs
- recentralization
- recapitalization
- reauthorizations
- reafforestations
- reaccreditations
- rationalizations
- radioautographic
- quantificational
- quadruplications
- psychopathically
- prussianizations
- prophylactically
- proletarianizing
- proletarianising
- programmatically
- procrastinations
- prequalification
- precancellations
- postsynaptically
- postmillenarians
- polysynaptically
- politicalization
- polarizabilities
- pictorialization
- phytoflagellates
- photodynamically
- phosphatizations
- petrographically
- personalizations
- passionatenesses
- parametrizations
- parameterization
- paradoxicalities
- pancreatectomies
- paleopathologist
- paleopathologies
- paleobotanically
- paedogenetically
- overexaggeration
- overexaggerating
- overelaborations
- overcapitalizing
- overarticulating
- overapplications
- overaccentuating
- orthographically
- organophosphates
- organoleptically
- operationalistic
- onomatopoeically
- nonpartisanships
- nonparticipatory
- nonparticipating
- nonmathematician
- nonmaterialistic
- nonmanufacturing
- nongravitational
- noncomparability
- noncannibalistic
- nonauthoritarian
- nonarbitrariness
- nationalizations
- municipalization
- multifactorially
- monosynaptically
- misvocalizations
- misappropriating
- misanthropically
- miniaturizations
- microvasculature
- microsporangiate
- micromanipulator
- micromanagements
- microencapsulate
- microearthquakes
- megagametophytes
- megacorporations
- medulloblastomas
- mathematizations
- materializations
- masculinizations
- marginalizations
- malpractitioners
- malapportionment
- majoritarianisms
- macrophotography
- macrophotographs
- macrolepidoptera
- localizabilities
- lithographically
- latensifications
- intramolecularly
- intracutaneously
- intervocalically
- internalizations
- intergradational
- intercalibration
- interassociation
- infantilizations
- immortalizations
- iconoclastically
- hypostatizations
- hypersalivations
- hyperrationality
- hypercatabolisms
- hydroxylapatites
- hospitalizations
- hexachloroethane
- hexachlorethanes
- hepatopancreases
- grandparenthoods
- formularizations
- fashionabilities
- familiarizations
- extracorporeally
- extrachromosomal
- externalizations
- externalisations
- ethnographically
- etherealizations
- encephalopathies
- emancipationists
- editorialization
- dogmaticalnesses
- dithiocarbamates
- dissatisfactions
- disorganizations
- discriminational
- disarticulations
- diagonalizations
- deuterocanonical
- detribalizations
- destabilizations
- desexualizations
- desacralizations
- denuclearization
- democratizations
- demilitarization
- demagnetizations
- deglamorizations
- decontaminations
- decasualizations
- decarburizations
- decarboxylations
- decalcifications
- deacidifications
- cyanoethylations
- crystallographic
- crystallizations
- criminalizations
- countercampaigns
- counterbalancing
- counterattacking
- counterattackers
- contraindicating
- containerization
- containerisation
- conspiratorially
- compartmentation
- communitarianism
- coadministration
- climatologically
- cladogenetically
- civilianizations
- circumvallations
- circumnavigators
- circumambulation
- circularizations
- cinematographies
- cinematographers
- chromatographing
- chromatographies
- chromatographers
- catheterizations
- cataphoretically
- cartographically
- cardiomyopathies
- carcinosarcomata
- carcinomatosises
- carboxypeptidase
- cantankerousness
- cannibalizations
- calorimetrically
- blepharoplasties
- biostratigraphic
- biostatisticians
- biomathematician
- biodegradability
- bathythermograph
- autotransfusions
- autotransformers
- autointoxication
- autoimmunization
- autocorrelations
- asymptomatically
- astrophotography
- astrophotographs
- associationistic
- assimilationists
- assimilationisms
- archiepiscopates
- archconservative
- archaeoastronomy
- antitotalitarian
- antistrophically
- antiromanticisms
- antirecessionary
- antirationalists
- antirationalisms
- antipornographic
- antiorganization
- antinationalists
- antiferromagnets
- antievolutionary
- anticonventional
- anticonservation
- anticonglomerate
- anticolonialists
- anticolonialisms
- anticarcinogenic
- antiassimilation
- antiaristocratic
- antiaphrodisiacs
- antiabortionists
- anthropopathisms
- aluminosilicates
- alphabetizations
- aeroelasticities
- adrenalectomized
- adenocarcinomata
- accountabilities
- accommodationist
- acclimatizations
- acanthocephalans
- xanthorrhoeaceae
- watermelon-shaped
- unsatisfactorily
- unsanctification
- undiplomatically
- undenominational
- undemocratically
- ultranationalism
- tricholomataceae
- traditionalistic
- tintinnabulation
- thiobacteriaceae
- syncategorematic
- suprarenalectomy
- sulfamethoxazole
- spiritualization
- spiritualisation
- septobasidiaceae
- self-satisfaction
- self-organization
- self-organisation
- self-flagellation
- self-annihilation
- sectionalization
- sectionalisation
- sclerodermatales
- schistosomatidae
- satisfactoriness
- remilitarization
- remilitarisation
- reincarnationism
- radiophotography
- protoarchaeology
- potamogetonaceae
- plicatoperipatus
- phyllostomatidae
- photocoagulation
- pharmacokinetics
- pharmacogenetics
- phantasmagorical
- paleoethnography
- paleoclimatology
- palaeornithology
- oscillatoriaceae
- organizationally
- opisthognathidae
- nonvolatilizable
- nonvolatilisable
- nontranslational
- myxobacteriaceae
- mycoplasmataceae
- mycobacteriaceae
- melodramatically
- mantophasmatodea
- leptosporangiate
- lepidobotryaceae
- lactobacillaceae
- labyrinthodontia
- isoagglutination
- internationalize
- internationality
- internationalism
- internationalise
- hysterocatalepsy
- hypothalamically
- hydrocharitaceae
- hippocastanaceae
- hematocolpometra
- hemagglutination
- haematocytopenia
- granulocytopenia
- grade-appropriate
- fictionalization
- fictionalisation
- extraterritorial
- eschatologically
- dipterocarpaceae
- dicamptodontidae
- denominationally
- dendrocolaptidae
- demineralisation
- declassification
- decentralisation
- crystallographer
- cryptobranchidae
- cross-examination
- contraindication
- compartmentalise
- companionability
- circumnavigation
- christianization
- christianisation
- ceratophyllaceae
- branchiostomidae
- branchiostegidae
- beta-adrenoceptor
- autoradiographic
- atrioventricular
- atrichornithidae
- aristolochiaceae
- aristocratically
- anti-inflammatory
- anthropometrical
- antagonistically
- anglo-catholicism
- ancylostomatidae
- anathematization
- anathematisation
- aminotransferase
- alstroemeriaceae
- alpha-lipoprotein
- affectionateness
- advantageousness
- actinomycetaceae
- acanthopterygian
Phrases (848)
- yeoman of the guard
- william gladstone
- wallace carothers
- w. somerset maugham
- valuation reserve
- tyrannosaurus rex
- turkoman language
- turcoman language
- tsuga caroliniana
- to a greater extent
- tibialis anterior
- thomas nelson page
- thomas hunt morgan
- thomas hart benton
- thomas alva edison
- theatrical season
- thai monetary unit
- temporary removal
- tactile sensation
- strait of magellan
- storage warehouse
- somatic sensation
- sir william walton
- signal/noise ratio
- sexual immorality
- sexual abstention
- saxicola torquata
- right to candidacy
- restraint of trade
- relative majority
- range of a function
- radiocarpal joint
- radioactive decay
- radio observation
- radiation pattern
- quentin tarantino
- quaternary period
- purchase contract
- ptloris paradisea
- protestant deacon
- proteles cristata
- potassium nitrate
- political program
- political machine
- poinsettia strain
- phylum arthropoda
- photostat machine
- pharyngeal tonsil
- personal relation
- papaver orientale
- pandion haliaetus
- painful sensation
- ovis montana dalli
- oscar hammerstein
- order stomatopoda
- order spatangoida
- oral presentation
- ondatra zibethica
- old latin language
- off the beaten path
- octadecanoic acid
- northwest passage
- nonvascular plant
- nontextual matter
- news organisation
- natural logarithm
- natural endowment
- natural elevation
- national monument
- muscae volitantes
- move back and forth
- mephitis macroura
- mentha longifolia
- mental exhaustion
- medulla oblongata
- material resource
- manihot esculenta
- malpighia obovata
- male genital organ
- malarial mosquito
- macrocytic anemia
- luciano pavarotti
- loxia curvirostra
- logical operation
- limosa haemastica
- library catalogue
- leading indicator
- katharine cornell
- john scott haldane
- italian greyhound
- informational rna
- information audit
- indoleacetic acid
- inchoative aspect
- in an elaborate way
- in all probability
- imagination image
- hypophyseal stalk
- hungarian pointer
- hospital chaplain
- great wall of china
- great grandmother
- grand canyon state
- gian carlo menotti
- gerardus mercator
- genus trichophaga
- genus pomacanthus
- genus metasequoia
- genus crassostrea
- genus antilocapra
- gambling contract
- gaetano donizetti
- franz anton mesmer
- francois truffaut
- force per unit area
- football official
- food manufacturer
- financial support
- final examination
- fenestra cochleae
- family pythonidae
- family locustidae
- family haliotidae
- family crotalidae
- family castoridae
- external body part
- ex-post evaluation
- european flatfish
- eternal damnation
- estate of the realm
- diabetic acidosis
- datura stramonium
- curcuma domestica
- crotalus cerastes
- covering material
- constant quantity
- computer readable
- compensation deal
- commercial treaty
- commedia dell'arte
- coming attraction
- combination salad
- coloring material
- class gasteropoda
- cheoplastic metal
- change of location
- chain of mountains
- catholic monarchs
- cast of characters
- cassia acutifolia
- cascade mountains
- captain john smith
- captain james cook
- capital of wyoming
- capital of vermont
- capital of vanuatu
- capital of uruguay
- capital of tunisia
- capital of somalia
- capital of senegal
- capital of romania
- capital of nigeria
- capital of new york
- capital of morocco
- capital of montana
- capital of moldova
- capital of liberia
- capital of lesotho
- capital of lebanon
- capital of jamaica
- capital of ireland
- capital of indiana
- capital of iceland
- capital of hungary
- capital of georgia
- capital of florida
- capital of finland
- capital of estonia
- capital of ecuador
- capital of burundi
- capital of bolivia
- capital of belgium
- capital of belarus
- capital of bahrain
- capital of austria
- capital of armenia
- capital of arizona
- capital of alabama
- cambodian capital
- calocarpum zapota
- california privet
- buteo jamaicensis
- breath of fresh air
- breach of warranty
- breach of the peace
- breach of contract
- boswellia serrata
- boolean operation
- board of education
- blood coagulation
- block anaesthesia
- battle of waterloo
- battle of tsushima
- battle of the aisne
- battle of saratoga
- battle of rossbach
- battle of omdurman
- battle of marathon
- battle of hastings
- bangalore torpedo
- badminton racquet
- autogenic therapy
- australian dollar
- atropa belladonna
- atrium of the heart
- atopic dermatitis
- atmospheric state
- astronomical unit
- artistic creation
- articulatio genus
- articulatio coxae
- arthur robert ashe
- ark of the covenant
- arctonyx collaris
- aquila chrysaetos
- apothecaries' unit
- antifouling paint
- anti-masonic party
- anglican catholic
- aneroid barometer
- ammotragus lervia
- american football
- allergic reaction
- albert a. michelson
- alan stewart paton
- agent provocateur
- after-shave lotion
- adlai stevenson ii
- adiabatic process
- adenomatous polyp
- actual possession
- activation energy
- act involuntarily
- aconitum napellus
- achromatic vision
- achromatic colour
- accomplished fact
- accelerator pedal
- academic relation
- zoysia tenuifolia
- zion national park
- yucca filamentosa
- yucateco language
- withdrawal method
- widebody aircraft
- wide-body aircraft
- white mountain ash
- water of hydration
- voltage regulator
- vocational school
- visible radiation
- viscount st. albans
- victoria sandwich
- veronica agrestis
- ventilation shaft
- vena anastomotica
- veiled accusation
- variable resistor
- varanus niloticus
- value orientation
- valuation account
- vacuum aspiration
- utopian socialism
- urosaurus ornatus
- unpleasant person
- united nations day
- tussilago farfara
- tulipa suaveolens
- trifoliolate leaf
- trifoliate orange
- tremella foliacea
- torreya taxifolia
- topological space
- tofieldia pusilla
- tjalling koopmans
- tinea pellionella
- thyroid cartilage
- throat sweetbread
- three-part harmony
- thoracic vertebra
- thomas the apostle
- thomas straussler
- theatrical poster
- thalassemia major
- tetanus antitoxin
- temporal relation
- television camera
- tarpon atlanticus
- taricha granulosa
- tactual sensation
- taconic mountains
- swamp chestnut oak
- supraorbital vein
- suborder natantia
- strawberry tomato
- strange attractor
- stonewall jackson
- sterculia foetida
- steamship company
- standing rib roast
- standard of living
- standard and poor's
- st. elias mountains
- spotted black bass
- spodoptera exigua
- spirits of ammonia
- special education
- sparaxis tricolor
- southern magnolia
- solanum rostratum
- solanum giganteum
- sodium salicylate
- socialist realism
- social distancing
- social assistance
- smooth hammerhead
- smooth darling pea
- smallmouthed bass
- sir thomas raffles
- sir thomas gresham
- sir patrick manson
- sir francis galton
- sexual attraction
- serratus anterior
- separation energy
- sensorimotor area
- senna obtusifolia
- semantic relation
- secretary of state
- secretary of labor
- secondary storage
- seabeach sandwort
- scilla nonscripta
- sarsaparilla root
- sanctum sanctorum
- san juan mountains
- royal velvet plant
- rough-leaved aster
- roman catholicism
- rocky mountain jay
- robert treat paine
- rima respiratoria
- rheumatoid factor
- rhetorical accent
- retarded blowback
- respiratory tract
- respiratory organ
- republic of latvia
- relaxation method
- regulatory agency
- refractory anemia
- recreational drug
- reciprocating saw
- real estate broker
- raoulia lutescens
- raoulia australis
- range of mountains
- ralph barton perry
- railroad terminal
- ragtag and bobtail
- radioactive waste
- radio transmitter
- radiation therapy
- radiation diagram
- radial keratotomy
- quartz oscillator
- quamoclit pennata
- python variegatus
- pulmonary anthrax
- ptolemaic dynasty
- pterocles alchata
- psophia crepitans
- prunus subcordata
- prumnopitys amara
- protea cynaroides
- pritzelago alpina
- primula polyantha
- press association
- powhatan language
- potato wart fungus
- potassium muriate
- potassium cyanide
- postmature infant
- port jackson heath
- pond-scum parasite
- polyvinyl acetate
- polyurethane foam
- polyodon spathula
- poison arrow plant
- pointed-leaf maple
- podocarpus totara
- podocarpus elatus
- pocket calculator
- pneumatic caisson
- platanus racemosa
- plantago psyllium
- pistia stratoites
- pistia stratiotes
- pilea involucrata
- phytolacca dioica
- photoplate making
- phonetic alphabet
- pholiota flammans
- phaseolus lunatus
- phalaris tuberosa
- petrarchan sonnet
- personal equation
- peritoneal cavity
- pellaea mucronata
- patriarchal cross
- patagonian desert
- passive transport
- party to the action
- paratyphoid fever
- parathyroid gland
- papanicolaou test
- panchromatic film
- oxalis acetosella
- overseas telegram
- our lady's bedstraw
- ostrya virginiana
- ormosia coarctata
- order testudinata
- order pterosauria
- order platyctenea
- order phasmatodea
- order monotremata
- order marattiales
- order gentianales
- order cordaitales
- order anacanthini
- orchard apple tree
- orbignya martiana
- optical telegraph
- ophthalmic artery
- operating theatre
- operating theater
- operating capital
- one one's coattails
- old-field toadflax
- old style calendar
- oenanthe aquatica
- odontaspis taurus
- ochotona collaris
- obligate anaerobe
- oblanceolate leaf
- oat cell carcinoma
- oakleaf goosefoot
- nymphalis antiopa
- nova scotia salmon
- notational system
- not by a blame sight
- northern marianas
- northern alliance
- nonfluent aphasia
- no fault insurance
- nicotiana tabacum
- nicotiana rustica
- news organization
- new zealand cotton
- new world anteater
- neutron radiation
- neotoma floridana
- neo-latin language
- natural selection
- natural resources
- natural enclosure
- nationalist china
- nasotracheal tube
- nasolacrimal duct
- mountain viscacha
- mountain swamp gum
- mountain starwort
- mountain sandwort
- mountain male fern
- mountain clematis
- mount kilimanjaro
- mother-in-law plant
- mormon tabernacle
- montia perfoliata
- montia cordifolia
- monocarpous plant
- monetary standard
- monarda pectinata
- monarda fistulosa
- monadic operation
- military hospital
- military blockade
- microcytic anemia
- metabolic indican
- mentholated salve
- mentha suaveolens
- megestrol acetate
- master of fine arts
- mass spectrograph
- marriage contract
- manufactured home
- manhattan project
- managing director
- malthusian theory
- malignant neuroma
- make no bones about
- magnolia stellata
- machine operation
- lyonia ligustrina
- lygodium palmatum
- lonicera tatarica
- long-tailed weasel
- long-distance call
- logarithmic scale
- local area network
- local anaesthetic
- local anaesthesia
- lobelia dortmanna
- lithium carbonate
- line organization
- line organisation
- lepiota americana
- lazarus of bethany
- layia platyglossa
- law of segregation
- law of gravitation
- lathyrus odoratus
- lathyrus nissolia
- lateral line organ
- largemouthed bass
- lambertia formosa
- lady emma hamilton
- keratosis pilaris
- kennesaw mountain
- jonathan trumbull
- john bach mcmaster
- jean de la fontaine
- james dewey watson
- irrational number
- irrational motive
- ipomoea quamoclit
- international law
- innominate artery
- inflation therapy
- income tax bracket
- imitation leather
- iliolumbar artery
- ignatius of loyola
- hypoplastic dwarf
- house of lancaster
- hatiora gaertneri
- hairy golden aster
- habitual abortion
- gyromitra brunnea
- gustavus adolphus
- gunboat diplomacy
- guibert of ravenna
- group amentiferae
- grindelia robusta
- grevillea robusta
- greater spearwort
- grandfather clock
- gram-atomic weight
- graeco-roman deity
- globular pearlite
- geological dating
- genus xanthorroea
- genus xanthomonas
- genus taurotragus
- genus spirochaeta
- genus sarcostemma
- genus phthorimaea
- genus macrotyloma
- genus macowanites
- genus lanthanotus
- genus daubentonia
- genus coryphantha
- genus ceratozamia
- genus castanopsis
- genus austrotaxus
- genus aristotelia
- genus aporocactus
- genus apatosaurus
- genus antheropeas
- genus amauropelta
- genus acokanthera
- genus acocanthera
- genus acanthophis
- gentiana calycosa
- genista tinctoria
- gateway to the west
- gas-cooled reactor
- gas-washing bottle
- garbage collector
- fragrant wood fern
- fragrant agrimony
- fourteenth salary
- forssman antibody
- florida strap fern
- florida arrowroot
- flacourtia indica
- flacourtia family
- fire control radar
- fetal circulation
- fertilization age
- female aristocrat
- feast of sacrifice
- fasciola hepatica
- farmer-labor party
- family vombatidae
- family trogonidae
- family strombidae
- family scolytidae
- family sapotaceae
- family proteaceae
- family portunidae
- family lithodidae
- family isoetaceae
- family eleotridae
- family cotingidae
- family compositae
- family brotulidae
- family boletaceae
- fallot's tetralogy
- faecal occult test
- factor analytical
- eyeshadow pallete
- exponential decay
- exclamation point
- examination paper
- ex-ante evaluation
- european nuthatch
- european nightjar
- european brown bat
- euphorbia dentata
- eucalyptus dumosa
- ergotrate maleate
- equatorial guinea
- entoloma sinuatum
- enigmatical canon
- endotracheal tube
- emotional arousal
- elizabeth peabody
- elisha graves otis
- elevator operator
- elevated railroad
- elaeostearic acid
- eastern poison oak
- east india company
- dramatis personae
- douglas macarthur
- dotted gayfeather
- diurnal variation
- dioscorea trifida
- digital audiotape
- dialect geography
- developmental age
- depreciation rate
- dendroica tigrina
- dendroica striate
- denatured alcohol
- david roland smith
- datura suaveolens
- cutaneous anthrax
- custodial account
- cultivated carrot
- cross-leaved heath
- cremation chamber
- cottontail rabbit
- cotacachi volcano
- cortical cataract
- correlation table
- corporate finance
- coronary care unit
- coronal consonant
- coordinate clause
- control character
- contrast material
- contractile organ
- contract of hazard
- computer language
- computer hardware
- computer database
- complementary dna
- common water snake
- commercial artist
- combination plane
- columbian mammoth
- collateral damage
- coleus aromaticus
- cocaine addiction
- clitoria turnatea
- clethra alnifolia
- class oligochaeta
- class merostomata
- class lycopodiate
- class ascomycetes
- citta del vaticano
- chromatin granule
- christmas begonia
- christian holy day
- chinese alligator
- chemical reaction
- chemical notation
- charge of quarters
- chaotic attractor
- chamber orchestra
- ceratonia siliqua
- cellulose acetate
- celestial equator
- castor canadensis
- cash reserve ratio
- cascara buckthorn
- cascade penstemon
- cartesian product
- carolina parakeet
- carnivorous plant
- cardiac tamponade
- capricorn the goat
- capital of vietnam
- capital of grenada
- cape breton island
- capacitive sensor
- cantonese dialect
- canis lupus arctos
- camphor dune tansy
- calochortus albus
- california nutmeg
- california beauty
- calcium phosphate
- calcium carbonate
- caffein addiction
- caesarian section
- caesarean section
- bushytail woodrat
- brokerage account
- broadcast station
- boswellia carteri
- boston baked beans
- booted armillaria
- board of trade unit
- blatta orientalis
- biological attack
- betula glandulosa
- betula fontinalis
- betula cordifolia
- benedetto caetani
- begonia socotrana
- beefsteak begonia
- beauty consultant
- battle of the marne
- battle of the alamo
- battle of navarino
- battle of langside
- basketball season
- base of operations
- baroness dudevant
- band-tailed pigeon
- axial flow turbine
- aviation medicine
- average deviation
- auxiliary storage
- automatic toaster
- automatic firearm
- auto manufacturer
- authorized shares
- augustinian order
- auditory modality
- audio compact disc
- atlantic moonfish
- astronomical year
- assumption of mary
- assistant foreman
- aspidistra elatio
- asphodeline lutea
- asiatic shrew mole
- asiatic cockroach
- artificial flower
- articulatio plana
- articulated lorry
- arthur conan doyle
- arteria femoralis
- arteria coronaria
- arteria choroidea
- arrow leaved aster
- aromatic compound
- arcus zygomaticus
- arborescent plant
- approximate range
- apparent movement
- apostle of germany
- apex of the sun's way
- aotus trivirgatus
- antoine lavoisier
- antimycotic agent
- anti-virus program
- anthrax pneumonia
- anterior synechia
- antennaria dioica
- anomalistic month
- annunciation lily
- annona reticulata
- andrew's clintonia
- analytic geometry
- analogue computer
- amorpha fruticosa
- american white oak
- american mastodon
- american frontier
- american antelope
- ambulatory plague
- amberboa moschata
- amaterasu omikami
- altostratus cloud
- alpha fetoprotein
- allowance account
- alligator snapper
- alicante bouschet
- alfred harmsworth
- aleatory contract
- alcohol addiction
- air national guard
- air combat command
- agrostis nebulosa
- aerosol container
- aeonium haworthii
- advice and consent
- adhesion contract
- addition reaction
- actinic radiation
- actinic keratosis
- account statement
- accommodating iol
- acceleration unit
- aby moritz warburg
- absorption factor
- absolute majority
- abronia umbellata
- abronia latifolia
- abronia elliptica
- ablative absolute
- 1st earl of balfour