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artificial intelligence noun : the capability of a machine and esp. a computer to imitate intelligent human behavior

artificial respiration noun : the rhythmic forcing of air into and out of the lungs of a person whose breathing has stopped

ar·til·lery noun, plural -ler·ies 1 : crew-served mounted firearms (as guns)

2 : a branch of the army armed with artillery

— ar·til·ler·ist noun

ar·ti·san noun : a skilled manual worker

Synonyms

artificer, craftsman, handicrafter; also artist, maker

art·ist noun 1 : one who practices an imaginative art; especially : one who creates objects of beauty

2 : ARTISTE

3 : one who is adept at something

Synonyms

ace, adept, authority, expert, master, virtuoso, whiz, wizard—more at EXPERT

ar·tiste noun : a skilled public performer

ar·tis·tic adjective 1 : of, relating to, or characteristic of art or artists

2 : showing taste and skill

— ar·tis·ti·cal·ly adverb

art·ist·ry noun : artistic quality or ability

Synonyms

adeptness, adroitness, art, artfulness, artifice, cleverness, craft, cunning, deftness, masterfulness, skill—more at SKILL

art·less adjective 1 : lacking art or skill

2 a : made without skill : CRUDE

b : free from artificiality : NATURAL

3 : free from guile : SINCERE

Synonyms

[2a] clumsy, crude, rough, rude, unrefined—more at RUDE

[3] genuine, honest, ingenuous, innocent, naive, natural, real, simple, sincere, true, unaffected, unpretentious

art·less·ly adverb : in an artless manner

Synonyms

ingenuously, naively, naturally, unaffectedly—more at NATURALLY

art·less·ness noun : the quality or state of being artless

Synonyms

greenness, ingenuousness, innocence, naïveté, naturalness, simplicity, unworldliness—more at NAÏVETÉ

art nou·veau noun, often cap A&N [ORIGIN: F, lit., new art]

: a late 19th century design style characterized by sinuous lines and leaf-shaped forms

arty adjective art·i·er; -est : showily or pretentiously artistic

— art·i·ly adverb

— art·i·ness noun

ar·um noun : any of a family of plants (as the jack-in-the-pulpit or a skunk cabbage) with flowers in a fleshy enclosed spike

ARV abbreviation American Revised Version

1-ary noun suffix : thing or person belonging to or connected with

2-ary adjective suffix : of, relating to, or connected with

Ary·an adjective 1 : INDO-EUROPEAN

2 : NORDIC

— Aryan noun

1as adverb 1 : to the same degree or amount : EQUALLY <~ green as grass>

2 : for instance

3 : when considered in a specified relation

2as conjunction 1 : in the same amount or degree in which

2 : in the same way that

3 : WHILE, WHEN

4 : THOUGH

5 : SINCE, BECAUSE <~ I'm not wanted, I'll go>

6 : that the result is

3as pronoun 1 : THAT — used after same or such

2 : a fact that

4as preposition : in the capacity or character of

As symbol arsenic

AS abbreviation 1 American Samoa

2 Anglo-Saxon

3 associate in science

asa·fet·i·da or asa·foe·ti·da noun : an ill-smelling plant gum formerly used in medicine

ASAP abbreviation as soon as possible

as·bes·tos noun : a noncombustible grayish mineral that occurs in fibrous form and has been used as a fireproof material

as·cend verb 1 : to move upward : MOUNT, CLIMB

2 : to succeed to : OCCUPY

Synonyms

arise, climb, lift, mount, rise, soar, up; also boost, elevate, raise, uplift, upraise

Antonyms

decline, descend, dip, drop, fall (off)

as·cen·dan·cy also as·cen·den·cy noun : controlling influence

Synonyms

dominance, dominion, predominance, preeminence, supremacy—more at SUPREMACY

1ascendant also as·cen