16-Letter Words Containing: _AT
(In Exact Order)
There are 636 16 letter words,
668 16 letter phrases and
0 16 letter abbr's with
_AT in.
Best Scoring for Word Games
| 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 With _AT In Order
Words (636)
- extraterrestrial
- indiscriminately
- disqualification
- disproportionate
- transilluminator
- characterization
- misappropriation
- prestidigitation
- catastrophically
- noncommunication
- circumambulating
- transubstantiate
- representational
- discombobulation
- countersignature
- hyperventilation
- reinterpretation
- overcomplicating
- interpretational
- indiscrimination
- diphthongization
- denaturalization
- denaturalization
- thermostatically
- overcompensation
- ostentatiousness
- nonparticipation
- demineralization
- collaborationist
- circumnavigating
- sensationalistic
- reclassification
- predetermination
- characterisation
- transformational
- noncommunicative
- undifferentiated
- unattractiveness
- nonproliferation
- neuropsychiatric
- internationalist
- decentralization
- conversationally
- collaborationism
- whatchamacallits
- weatherproofness
- weatherboardings
- weatherabilities
- watertightnesses
- waterproofnesses
- vegetativenesses
- vascularizations
- unsophistication
- unpalatabilities
- unostentatiously
- universalization
- ungratefulnesses
- underutilization
- underestimations
- underappreciated
- unaffectionately
- ultranationalist
- ultramarathoners
- ultrafiltrations
- transportational
- transplantations
- transnationalism
- transliterations
- transilluminates
- transilluminated
- transfigurations
- thermoregulatory
- thermoregulators
- thermoregulation
- thermoregulating
- teratogenicities
- teratocarcinomas
- technicalization
- systematizations
- systematizations
- systematicnesses
- synchronizations
- synchronisations
- symptomatologies
- sympathomimetics
- sympathectomized
- syllabifications
- supranationality
- supranationalist
- supranationalism
- supplementations
- superstimulating
- superspeculation
- supersaturations
- supersaturations
- superpatriotisms
- supernaturalists
- supernaturalisms
- supercorporation
- superbureaucrats
- subvocalizations
- suburbanizations
- suborganizations
- suboptimizations
- subjectivization
- standardizations
- spatiotemporally
- slatternlinesses
- sesquicarbonates
- seronegativities
- sensationalizing
- sensationalising
- semiquantitative
- semidomesticated
- semiconservative
- sclerenchymatous
- saccharification
- romanticizations
- revisualizations
- retransformation
- retinoblastomata
- resolidification
- resocializations
- requalifications
- reprivatizations
- reprivatizations
- representativity
- representatively
- reorganizational
- reorchestrations
- renormalizations
- remunerativeness
- reinvestigations
- reincorporations
- regionalizations
- regeneratenesses
- refortifications
- redeterminations
- recontaminations
- reconsiderations
- reconfigurations
- reconcentrations
- rechromatography
- rechromatographs
- recertifications
- recentralization
- recapitalization
- reauthorizations
- reafforestations
- reaccreditations
- rationalizations
- rationalizations
- quantitativeness
- quantificational
- quadruplications
- psychopathically
- pseudocoelomates
- prussianizations
- proselytizations
- programmatically
- prognostications
- procrastinations
- prestidigitators
- preservationists
- preregistrations
- prequalification
- prenotifications
- premodifications
- preincorporation
- preformationists
- precertification
- precancellations
- polycondensation
- politicalization
- platitudinarians
- pictorialization
- phytopathologies
- phytoflagellates
- physiopathologic
- photorespiration
- photoionizations
- photoexcitations
- photoduplication
- photoduplicating
- photodissociates
- photodissociated
- phosphorylations
- phosphoglycerate
- phosphocreatines
- phosphatizations
- phosphatizations
- personifications
- personalizations
- pathophysiologic
- passionatenesses
- parasympathetics
- parametrizations
- parameterization
- paradigmatically
- pancreatectomies
- paleopathologist
- paleopathologies
- overutilizations
- overstimulations
- overspeculations
- overorchestrates
- overorchestrated
- overexpectations
- overexaggeration
- overexaggerating
- overelaborations
- overcultivations
- overconservative
- overcompensatory
- overcompensating
- overcommunicates
- overcommunicated
- overarticulating
- overapplications
- overaccentuating
- orthopsychiatric
- organophosphates
- opinionativeness
- operationalistic
- onomatopoeically
- oligomerizations
- objectifications
- nullificationist
- nonpsychiatrists
- nonparticipatory
- nonparticipating
- nonmathematician
- nonmaterialistic
- nongravitational
- nonexploitations
- nonconservatives
- nonconservations
- nonconfrontation
- noncommutativity
- noncommunicating
- neuropathologist
- neuropathologies
- neoconservatives
- neoconservatisms
- naturalistically
- nationalizations
- nationalizations
- municipalization
- multilateralists
- multilateralisms
- monochromaticity
- misvocalizations
- misregistrations
- miscommunication
- misappropriating
- miniaturizations
- miniaturizations
- microvasculature
- microsporangiate
- micromanipulator
- microencapsulate
- microcirculatory
- microcirculation
- methylphenidates
- metamathematical
- meristematically
- megacorporations
- meditativenesses
- mathematizations
- mathematizations
- materializations
- materializations
- masculinizations
- marginalizations
- latensifications
- latensifications
- intervisitations
- interstratifying
- interstimulation
- interpretatively
- interpenetrating
- internalizations
- intermodulations
- intermediateness
- interiorizations
- intergradational
- intergenerations
- interdigitations
- intercorrelation
- intercorrelating
- intercalibration
- interassociation
- intensifications
- insubordinations
- instrumentations
- insolubilization
- insatiablenesses
- inordinatenesses
- innovativenesses
- infantilizations
- indeterminations
- indemnifications
- indelicatenesses
- inconsiderations
- inarticulateness
- inappreciatively
- inadequatenesses
- imperativenesses
- immunoregulatory
- immunoregulation
- immunopathologic
- immunomodulatory
- immunomodulators
- immunohematology
- immortalizations
- immoderatenesses
- illiteratenesses
- idolatrousnesses
- hypostatizations
- hypostatizations
- hyperventilating
- hyperstimulation
- hyperstimulating
- hypersalivations
- hyperrationality
- hyperinnervation
- hypercatabolisms
- hydroxylapatites
- hospitalizations
- histopathologist
- histopathologies
- heterochromatins
- hepatotoxicities
- hepatopancreases
- hematoporphyrins
- hemagglutinating
- greatheartedness
- gratuitousnesses
- grammaticalities
- gelatinousnesses
- frenchifications
- formularizations
- figurativenesses
- featherstitching
- fathomlessnesses
- familiarizations
- externalizations
- externalisations
- exteriorizations
- extemporizations
- extemporisations
- experimentations
- exemplifications
- excommunications
- etherealizations
- epigrammatically
- enteropathogenic
- encephalopathies
- emancipationists
- electrifications
- editorialization
- dogmaticalnesses
- diversifications
- dithiocarbamates
- dissipatednesses
- dissatisfactions
- disputatiousness
- disorganizations
- disintoxications
- disequilibration
- disequilibrating
- discriminatorily
- discriminational
- discriminatingly
- discontinuations
- discombobulating
- disarticulations
- differentiations
- dichotomizations
- diagonalizations
- devitrifications
- detribalizations
- desulfurizations
- destabilizations
- desexualizations
- desertifications
- desensitizations
- desacralizations
- derivativenesses
- depressurization
- depolymerization
- depoliticization
- dephosphorylates
- dephosphorylated
- denuclearization
- denitrifications
- demystifications
- democratizations
- democratizations
- demilitarization
- demagnetizations
- deliberativeness
- deliberatenesses
- dehydrogenations
- dehumidification
- deglamorizations
- degeneratenesses
- dedifferentiates
- decorativenesses
- decontaminations
- deconcentrations
- decertifications
- decasualizations
- decarburizations
- decarboxylations
- decalcifications
- deacidifications
- cyanoethylations
- cumulativenesses
- crystallizations
- cryopreservation
- criminalizations
- creaturelinesses
- counterstatement
- counterinflation
- counterattacking
- counterattackers
- copolymerization
- coordinatenesses
- conveyorizations
- contraindicating
- containerization
- containerisation
- conspiratorially
- conservatorships
- conservativeness
- conservationists
- confrontationist
- computerizations
- complementations
- compatiblenesses
- compartmentation
- commodifications
- colonizationists
- codeterminations
- coadministration
- climatologically
- civilianizations
- circumvallations
- circumstantiates
- circumstantiated
- circumnavigators
- circumambulation
- circularizations
- cinematographies
- cinematographers
- chromatographing
- chromatographies
- chromatographers
- celebratednesses
- catheterizations
- catheterizations
- cataphoretically
- catachrestically
- cardiomyopathies
- carcinosarcomata
- carcinomatosises
- cannibalizations
- calculatednesses
- breathlessnesses
- biostratigraphic
- biostatisticians
- biomathematician
- biodeterioration
- biocompatibility
- bathythermograph
- autointoxication
- autoimmunization
- autocorrelations
- asymptomatically
- associationistic
- assimilationists
- assimilationisms
- articulatenesses
- archiepiscopates
- archconservative
- antirationalists
- antirationalisms
- antipathetically
- antiorganization
- antinationalists
- antimaterialists
- antimaterialisms
- anticonservation
- anticonglomerate
- antibureaucratic
- antiassimilation
- antiaristocratic
- anthropopathisms
- antepenultimates
- anagrammatically
- amateurishnesses
- aluminosilicates
- alphabetizations
- administratrices
- adenocarcinomata
- acetylsalicylate
- accumulativeness
- accommodationist
- acclimatizations
- acclimatizations
- weatherstripping
- watermelon-shaped
- unsystematically
- unsatisfactorily
- unsanctification
- unrepresentative
- ungrammaticality
- undiscriminating
- undiplomatically
- undenominational
- undemocratically
- unattainableness
- unappreciatively
- ultranationalism
- tricholomataceae
- tortoiseshell-cat
- tintinnabulation
- syncategorematic
- syncategorematic
- supernaturalness
- superfecundation
- steprelationship
- spiritualization
- spiritualisation
- self-satisfaction
- self-renunciation
- self-preservation
- self-organization
- self-organisation
- self-flagellation
- self-depreciation
- self-condemnation
- self-annihilation
- sedative-hypnotic
- sectionalization
- sectionalisation
- sclerodermatales
- schistosomatidae
- satisfactoriness
- remilitarization
- remilitarisation
- relativistically
- reincarnationism
- quatercentennial
- psychopathologic
- proto-reformation
- plicatoperipatus
- plicatoperipatus
- plateletpheresis
- phyllostomatidae
- photocoagulation
- paleoclimatology
- overexploitation
- oscillatoriaceae
- organizationally
- opisthognathidae
- nonvolatilizable
- nonvolatilisable
- nontranslational
- nonreciprocating
- non-proliferation
- mycoplasmataceae
- multiplicatively
- mispronunciation
- melodramatically
- mantophasmatodea
- manipulativeness
- lexicostatistics
- leptosporangiate
- isoagglutination
- interrelatedness
- interpenetration
- internationalize
- internationality
- internationalism
- internationalise
- intercommunicate
- indiscriminating
- indefatigability
- hysterocatalepsy
- hypopigmentation
- hemoglobinopathy
- hematocolpometra
- hemagglutination
- haematocytopenia
- grade-appropriate
- fictionalization
- fictionalisation
- extraterritorial
- eschatologically
- disconsolateness
- diagrammatically
- dermatosclerosis
- denominationally
- demineralisation
- dedifferentiated
- declassification
- decentralisation
- cross-pollination
- cross-pollinating
- cross-examination
- contraindication
- configurationism
- commensurateness
- collectivization
- collectivisation
- circumnavigation
- christianization
- christianisation
- chocolate-colored
- ceratophyllaceae
- bureaucratically
- aristocratically
- appreciativeness
- anti-inflammatory
- anglo-catholicism
- ancylostomatidae
- anathematization
- anathematization
- anathematization
- anathematisation
- anathematisation
- anathematisation
- affectionateness
- administratively
Phrases (668)
- zea mays indentata
- write-in candidate
- wisdom literature
- water development
- venae pancreatica
- valuation reserve
- uneducated person
- to a greater extent
- theatrical season
- the great calamity
- temperature scale
- tactile sensation
- summary treatment
- strategic warning
- statutory offence
- spoonbill catfish
- somatic sensation
- somatic sensation
- signal/noise ratio
- seleucus i nicator
- schematic drawing
- saxicola torquata
- saxicola torquata
- roseate spoonbill
- repeating firearm
- relative majority
- raphus cucullatus
- radio observation
- radiation pattern
- radiation pattern
- quaternary period
- proteles cristata
- private detective
- potassium nitrate
- population growth
- platanus wrightii
- photostat machine
- personal relation
- performative verb
- painful sensation
- order stomatopoda
- order spatangoida
- oral presentation
- operating expense
- ondatra zibethica
- old latin language
- off the beaten path
- off the beaten path
- nontextual matter
- news organisation
- negative stimulus
- negative feedback
- natural scientist
- natural logarithm
- natural endowment
- natural elevation
- natural elevation
- national monument
- nathaniel currier
- mythical creature
- medulla oblongata
- material resource
- market strategist
- margaret thatcher
- malpighia obovata
- mahratti language
- logical operation
- library catalogue
- lepomis punctatus
- leading indicator
- larrea tridentata
- larrea tridentata
- know what's going on
- katherine cornell
- katharine cornell
- inhuman treatment
- informational rna
- information audit
- inchoative aspect
- in an elaborate way
- imagination image
- illumination unit
- heat hyperpyrexia
- gujerati language
- greater celandine
- great wall of china
- great grandparent
- great grandmother
- great grandfather
- great grandfather
- grand canyon state
- giving medication
- gerardus mercator
- genus triceratops
- flat panel display
- final examination
- field of operation
- family fregatidae
- family elateridae
- ex-post evaluation
- european flatfish
- euclid's postulate
- eternal damnation
- estate of the realm
- eczema vaccinatum
- diaper dermatitis
- dianthus barbatus
- deathwatch beetle
- deathwatch beetle
- datura stramonium
- cygnus buccinator
- creature comforts
- creative thinking
- creative activity
- covering material
- control operation
- compensation deal
- common watercress
- commercial treaty
- coming attraction
- combination salad
- coloring material
- chocolate pudding
- chateura pelagica
- change of location
- catholic monarchs
- capital of vanuatu
- canebrake rattler
- calvatia gigantea
- business relation
- building material
- breath of fresh air
- boswellia serrata
- boolean operation
- book of revelation
- board of education
- blood coagulation
- birth certificate
- battle of waterloo
- battle of waterloo
- battle of tsushima
- battle of the bulge
- battle of the boyne
- battle of the aisne
- battle of saratoga
- battle of saratoga
- battle of rossbach
- battle of philippi
- battle of omdurman
- battle of monmouth
- battle of marathon
- battle of marathon
- battle of hastings
- battle of fontenoy
- battle of borodino
- atopic dermatitis
- atmospheric state
- arundinaria tecta
- artistic creation
- articulatio genus
- articulatio coxae
- aram khachaturian
- anglican catholic
- alan stewart paton
- agent provocateur
- agathis australis
- adiabatic process
- adhesive material
- adenomatous polyp
- activation energy
- achromatic vision
- achromatic colour
- accelerator pedal
- academic relation
- abatable nuisance
- zygomatic process
- zoysia tenuifolia
- zion national park
- yucateco language
- yucatan peninsula
- yellow watercress
- wheatstone bridge
- weather stripping
- weather satellite
- weather satellite
- weather condition
- watergate scandal
- watergate scandal
- water of hydration
- water of hydration
- water gillyflower
- voltage regulator
- vocational school
- visible radiation
- vigna unguiculata
- viburnum dentatum
- verruca acuminata
- ventilation shaft
- vena testicularis
- vena arcuata renis
- veiled accusation
- value orientation
- valuation account
- vacuum aspiration
- urosaurus ornatus
- urinary apparatus
- united states navy
- united states mint
- united states code
- united states army
- united nations day
- ungrateful person
- unemployment rate
- undulatory theory
- tyrant flycatcher
- trust corporation
- truncated pyramid
- trifoliolate leaf
- trifoliate orange
- travel literature
- transdermal patch
- torreya taxifolia
- tiger rattlesnake
- throw cold water on
- throat sweetbread
- theatrical poster
- the great unwashed
- temporal relation
- tayassu angulatus
- tarpon atlanticus
- tactual sensation
- tacca pinnatifida
- sweating sickness
- suborder natantia
- strawberry tomato
- stratified sample
- strange attractor
- stock certificate
- statutory offense
- statistical table
- stationery seller
- stachys sylvatica
- squatina squatina
- special education
- south platte river
- solanum rostratum
- soil conservation
- sodium salicylate
- sodium dichromate
- sodium bichromate
- sleep deprivation
- sir patrick manson
- shell corporation
- sexual attraction
- sesbania exaltata
- serratus anterior
- septic sore throat
- separation energy
- seneca the younger
- semantic relation
- secretary of state
- sebastes miniatus
- satureja vulgaris
- saint patrick's day
- roman catholicism
- robert treat paine
- rima respiratoria
- rheumatoid factor
- respiratory tract
- respiratory organ
- republic of latvia
- repeating decimal
- relaxation method
- relativity theory
- relativistic mass
- relative velocity
- relative quantity
- relative humidity
- regulatory agency
- registration fire
- recreational drug
- reciprocating saw
- real estate broker
- rattus norvegicus
- ramesses the great
- radiation therapy
- radiation diagram
- radial keratotomy
- quartz oscillator
- quamoclit pennata
- python variegatus
- pulsatilla patens
- pulsatilla patens
- pterocles alchata
- prunus subcordata
- probation officer
- preventive attack
- press association
- powhatan language
- potato wart fungus
- potassium muriate
- postmature infant
- port jackson heath
- polyvinyl acetate
- polyodon spathula
- podocarpus elatus
- pocket calculator
- pocket battleship
- pneumatic caisson
- plate filter press
- platanus racemosa
- pistia stratoites
- pistia stratiotes
- pipestem clematis
- pilea involucrata
- photoplate making
- phenyl salicylate
- phaseolus lunatus
- phalaris aquatica
- personal equation
- pereskia aculeata
- perca fluviatilis
- peptic ulceration
- pellaea mucronata
- peccari angulatus
- peace garden state
- patterned advance
- patriarchal cross
- patagonian desert
- paratyphoid fever
- parathyroid gland
- pancreatic cancer
- pancreatic artery
- panchromatic film
- osculating circle
- ormosia coarctata
- order testudinata
- order platyctenea
- order phasmatodea
- order monotremata
- order marattiales
- operating theatre
- operating theatre
- operating theater
- operating theater
- operating surgeon
- operating capital
- one one's coattails
- old dominion state
- off-line operation
- oenanthe aquatica
- observation tower
- obligate anaerobe
- oblanceolate leaf
- oat cell carcinoma
- nymphaea stellata
- numeration system
- notechis scutatus
- notational system
- north platte river
- nominating speech
- nitrogen fixation
- nitrate bacterium
- nicotiana tabacum
- news organization
- new world anteater
- new latin language
- neutron radiation
- neo-latin language
- natural selection
- natural resources
- natural enclosure
- native australian
- nationalist china
- muscicapa striata
- mountain clematis
- motor torpedo boat
- montia perfoliata
- monarda pectinata
- monadic operation
- miniature fan palm
- mid-atlantic ridge
- methylated spirit
- methyl salicylate
- metatarsal artery
- mercury fulminate
- mentholated salve
- megestrol acetate
- medial geniculate
- maternal language
- marattia salicina
- manhattan project
- maktab al-khidamat
- magnolia stellata
- magnesium sulfate
- machine operation
- lygodium palmatum
- lusatian language
- lonicera tatarica
- lonicera tatarica
- lithium carbonate
- lister cultivator
- line organization
- line organisation
- lespedeza striata
- lespedeza cuneata
- leathery polypody
- layia platyglossa
- law of segregation
- law of gravitation
- latinian language
- lathyrus odoratus
- lathyrus odoratus
- lathyrus nissolia
- lathyrus hirsutus
- lateral ventricle
- lateral line organ
- keratosis pilaris
- katharine hepburn
- jonathan trumbull
- james dewey watson
- jaghatai language
- irrational number
- irrational motive
- iodinated protein
- invertebrate foot
- international law
- intermediate host
- innominate artery
- inflation therapy
- induction heating
- incubation period
- in great confusion
- imperforate hymen
- immediate payment
- immediate allergy
- imitation leather
- imitation leather
- illiterate person
- illicium anisatum
- ignoratio elenchi
- ignatius of loyola
- identity operator
- hydatidiform mole
- hot stuffed tomato
- henry le chatelier
- hatiora gaertneri
- gypaetus barbatus
- gunboat diplomacy
- gujarati language
- guerrilla theater
- guerrilla theater
- groundwater level
- grevillea striata
- greater spearwort
- great yellowcress
- great st john's wort
- great sandy desert
- great barrier reef
- grassy death camas
- grandfather clock
- gram-atomic weight
- good continuation
- golden gate bridge
- geranium pratense
- geological dating
- genus polypedates
- genus polygonatum
- genus platystemon
- genus platylobium
- genus platycerium
- genus platichthys
- genus platanthera
- genus perognathus
- genus megatherium
- genus latrodectus
- genus ceratozamia
- genus ceratopogon
- genus atrichornis
- genus apatosaurus
- genus albatrellus
- genista tinctoria
- gateway to the west
- galictis vittatus
- freshwater mussel
- freshwater limpet
- fetal circulation
- fertilization age
- female aristocrat
- feather reed grass
- fasciola hepatica
- family vombatidae
- family patellidae
- family dasyatidae
- family cymatiidae
- family batidaceae
- false baby's breath
- fabiana imbricata
- exclamation point
- examination paper
- ex-ante evaluation
- even-toed ungulate
- european nuthatch
- european brown bat
- euphorbia dentata
- eucarya acuminata
- estimation theory
- erodium moschatum
- ergotrate maleate
- ergotrate maleate
- ergative language
- equatorial guinea
- entoloma sinuatum
- enigmatical canon
- elevator operator
- elevator operator
- elevated railroad
- eczema marginatum
- ectopic gestation
- drilling platform
- dramatis personae
- dotted gayfeather
- dot matrix printer
- divine revelation
- diurnal variation
- district attorney
- diphylla ecaudata
- dioscorea trifida
- diathermy machine
- detonating device
- desperate straits
- desperate measure
- designated hitter
- designated driver
- desert rheumatism
- depreciation rate
- depreciation rate
- dendroica tigrina
- dendroica striate
- denatured alcohol
- delicatessen food
- defecation reflex
- decumaria barbata
- davallia pyxidata
- datura suaveolens
- curie temperature
- cultivated celery
- cultivated carrot
- cross-leaved heath
- cricket-bat willow
- cremation chamber
- cortical cataract
- correlation table
- corporate finance
- coordinate system
- coordinate clause
- cooking chocolate
- contrast material
- condensation pump
- concrete vibrator
- concentrated fire
- computer database
- compression ratio
- complex conjugate
- compensatory time
- commutative group
- common water snake
- common pond-skater
- combination plane
- collateral damage
- coleus aromaticus
- close corporation
- clitoria turnatea
- clitoria turnatea
- clematis texensis
- class tentaculata
- class merostomata
- class lycopodiate
- class equisetatae
- citta del vaticano
- citrus reticulata
- cinclus aquaticus
- chromatin granule
- chocolate truffle
- chinese alligator
- chemical notation
- chaotic attractor
- chagatai language
- ceratonia siliqua
- cellulose nitrate
- cellulose acetate
- celestial equator
- caterpillar tread
- caterpillar track
- catalytic cracker
- cassia auriculata
- cash reserve ratio
- carassius auratus
- capsicum baccatum
- capricorn the goat
- calcium phosphate
- calcium carbonate
- butacaine sulfate
- bushytail woodrat
- buccinator muscle
- broadcast station
- breathing machine
- blephilia celiata
- blatta orientalis
- biological attack
- bilateral descent
- battle of the somme
- battle of the marne
- battle of the alamo
- battle of st mihiel
- battle of poitiers
- battle of navarino
- battle of langside
- battle of eniwetok
- battle of blenheim
- baton rouge bridge
- base of operations
- basal temperature
- banded water snake
- aviation medicine
- average deviation
- automatic toaster
- automatic firearm
- astilbe biternata
- aster divaricatus
- aspidistra elatio
- asiatic sweetleaf
- asiatic shrew mole
- asiatic cockroach
- asiatic black bear
- articulatio plana
- articulated lorry
- aromatic compound
- arcus zygomaticus
- araneus cavaticus
- approximate range
- aotus trivirgatus
- annunciation lily
- annona reticulata
- anastigmatic lens
- ambulatory plague
- amberboa moschata
- amaterasu omikami
- aluminium nitrate
- altostratus cloud
- alternative birth
- alpinia purpurata
- allium acuminatum
- alligator snapper
- aleatory contract
- air national guard
- air combat command
- adalia bipunctata
- actinic radiation
- actinic keratosis
- account statement
- accommodating iol
- acceleration unit
- abronia umbellata
- abronia latifolia
- abrasive material
- ablative absolute
- aba transit number