arecoid
Belonging or relating to the palms of the subfamily Arecoideae.

areek
In a reeking condition; having a strong odour.

areel
Reeling; spinning or moving unsteadily, especially from shock, surprise, or confusion.

areflexic
Exhibiting, or relating to, areflexia.

aregenerative
Not regenerative.

aregeneratory
Not regeneratory.

aregional
Not regional; without making reference to a particular region.

areic
Of or pertaining to area; especially used to describe a measurement per unit area.

areligious
Not religious; irreligious.

arenaceous
Sandy; characterised by sand.
Growing in sandy soil.
Arenitic (relating to arenite)

arenalike
Resembling or characteristic of an arena.

arenaviral
Of or pertaining to arenaviruses.

arenchymatic
Misspelling of aerenchymatic.

arenic
Pertaining to an arene.

arenicolous
Living or burrowing in sand.

areniferous
Sandy.

areniform
of or resembling sand

arenilitic
Of or pertaining to sandstone.

arenitic
Of or related to arenite

arenized
simple past and past participle of arenize

arenoid
Resembling sand.

arenophilic
That grows in sand (or very sandy soil).

arenophilous
Psammophilous.

areocentric
Having the planet Mars at the center.

areogenic
Misspelling of aerogenic.

areographic
Of or pertaining to areography

areographical
Synonym of areographic.

areolar
Of or relating to areolae.
Characterised by areolae (intercellular spaces).
Of or relating to areoles.

areolate
Having areolas
Having a pattern of block-like areas similar to cracked dried mud

areolated
Synonym of areolate.

areologic
Synonym of areological.

areolomammillary
Relating to an areola and a nipple

areometric
Relating to, or measured by, an areometer.

areometrical
Synonym of areometric.

areostationary
A geostationary orbit around Mars.

areosynchronous
Having a rate of revolution that matches the rotation period of Mars, and thus remaining over the same point on that planet's surface. (of the orbit of a satellite)

aretaic
Of or pertaining to virtue or excellence.

aretecratic
Relating to or characteristic of a system of governance based on virtue, moral excellence, or civic merit.
Pertaining to the principles or practices of aretecracy.

aretegenic
Conducive to or producing virtue.

aretological
Relating to aretology

argentaffin
That is stained by silver salts

argentaffins
plural of argentaffin

argental
Of silver.

argenteous
Silvery.

argentian
Containing silver.

argentic
Of, pertaining to or containing silver.
Of certain compounds, containing silver in a lower proportion than in argentous compounds.

argentiferous
Containing or producing silver.

argentine
Containing or resembling silver.

argentometric
Relating to argentometry.

argentophil
Having an affinity for silver.
argyrophil

argentophilic
argyrophilic

argentous
Of, pertaining to, or containing silver.
Of certain compounds, containing silver in a higher proportion than in argentic compounds.

argh
Expressing annoyance, dismay, embarrassment or frustration.

argic
Having an argillic horizon

argies
third-person singular simple present indicative of argy

argillaceous
Pertaining to clay; made of, containing, or resembling clay; clayey.

argillic
Of or pertaining to clay or clay minerals.

argillics
plural of argillic

argilliferous
Producing clay; rich in argil.

argillitic
Relating to, or containing, argillite.

argilloarenaceous
Consisting of, or containing, clay and sand.

argillocalcareous
Consisting of, or containing, clay and calcareous earth.

argilloferruginous
Containing clay and iron.

argininemic
Having argininemia.

argininosuccinic
Relating to argininosuccinic acid.

arginolytic
That breaks down arginine, typically by removal of an amino group

arginylated
Modified by arginylation

argonated
containing argon.

argonautic
Relating to Jason's ship, the Argo.
Adventurous.

argonlike
Resembling argon.

argotic
Of or belonging to argot.

arguable
That can be argued; that can be proven or strongly supported with sound logical deduction, precedent, and evidence.
Open to doubt, argument or debate.

arguesome
Characterised or marked by arguing; contentious

argumental
Based on arguments; pertaining to arguments.

argumentatious
Tending to argue; disputatious.

argumentative
Of or relating to argumentation; specifically, presenting a logical argument or line of reasoning; argumentive, discursive.
Prone to argue or dispute.

argumentatory
Synonym of argumentatious.

argumentive
Being or presenting an argument or line of reasoning.

argumentless
Without arguments.

argute
Sharp; perceptive; shrewd.
Shrill in sound.

argyric
Of, pertaining to, or afflicted with argyria.

argyrophil
Synonym of argyrophilic.

argyrophilic
Having an affinity for silver (and thus able to be stained by a subsequent reducing agent).

argyrotic
Of or pertaining to argyrosis.

arheic
Having no drainage channels due to lack of rainfall.

arhizomatous
Not rhizomatous

arhizotonic
Alternative form of arrhizotonic.

arhythmic
Having no rhythm.

arhythmical
Arrhythmic, having no rhythm.

arhythmogenic
Misspelling of arrhythmogenic.

arialike
Resembling or characteristic of an aria.

arid
Very dry.
Describing a very dry climate. Typically defined as less than 25 cm or 10 inches of rainfall annually.
Devoid of value.

arider
comparative form of arid: more arid

aridest
superlative form of arid: most arid

aridic
Bordering an arid region

arietiform
Having the shape of a ram's head or of the astrological symbol of Aries, ⟨♈︎⟩.

arietine
Of, like, or pertaining to rams.

ariled
Alternative form of arilled (“having an aril”).

arillar
Relating to the aril.

arillary
Relating to the aril.

arillate
Having arils.

arillated
Having an aril.

arilled
Having an aril.

arilliform
Bag-shaped.

arilloid
Alternative form of ariloid.

ariloid
Resembling an aril.

ariose
Melodic and song-like.

ariot
Filled with or involving rioting or riotous behaviour.
Filled in an unrestrained manner.

aripple
rippling

aristaless
Without an arista.

aristarchic
Of or related to aristarchy.

aristate
Having a long bristle at its apex.
Having a pointed, beard-like process, like those of the glumes of wheat; awned
Having a slender, sharp, or spiny tip.

aristated
aristate

aristiform
Having the bristlelike shape or fibrillar structure of aristae.

aristocratic
Of, pertaining to, or favouring, an aristocracy
Similar to the aristocracy; characteristic of, the aristocracy.

aristocratical
Aristocratic.

aristodemocratic
Relating to aristodemocracy

aristodemocratical
Alternative form of aristodemocratic.

aristogenetic
Of or relating to aristogenesis.

aristogenic
Relating or adapting to producing the very best offspring; eugenic with an aim towards an optimal state.

aristolochiaceous
Of or relating to the family Aristolochiaceae of tropical vines.

aristolochic
Derived from a plant of the family Aristolochiaceae.
Caused by aristolochic acid.

aristolochin
Synonym of aristolochic acid.

aristolochine
Synonym of aristolochic acid.

aristological
pertaining to aristology

aristophrenic
Of superior mind or intellect.

aristulate
Having a short beard or awn

arithmatic
Misspelling of arithmetic.

arithmetic
The mathematics of numbers (integers, rational numbers, real numbers, or complex numbers) under the operations of addition, subtraction, multiplication, and division.
Number theory

arithmetical
Of or pertaining to arithmetic, particularly the functions of arithmetic (noun; stress on the second syllable).

arithmeticals
plural of arithmetical

arithmetike
spelling of Arithmetic.

arithmetizable
Able to be arithmetized.

arithmocratic
Relating to arithmocracy.

arithmographic
In which words are encoded as numbers

arkeological
Relating to arkeology.

arklike
Resembling or characteristic of an ark.

arkosic
Of or pertaining to arkose.

armable
Able to be armed.

armamentarial
Of or relating to an armamentarium.

armatureless
Without an armature.

armbanded
Wearing an armband.

armeniaceous
Apricot-colored.