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artificial intelligence an area of computer science that explores the ability of computers to think or have intelligence. Artificial intelligence is concerned with developing computer programs or computers that seem to use reason and make decisions.
artificial respiration the forcing of air into and out of the lungs of a person who has stopped breathing.
artillery large weapons used in land battles, such as cannons or rockets. Artillery is too heavy for a person to carry and is sometimes mounted on wheels. [2 definitions]
artisan a person skilled in making things, especially by using the hands. People such as those who make furniture, quilts, or other crafts are artisans.
artist a person who is good at painting, music, writing, or any other art. [2 definitions]
artistic having to do with art or artists. [2 definitions]
As symbol of the chemical element arsenic.
as1 in equal measure; to the same extent. [7 definitions]
ASAP an abbreviation for "as soon as possible."
asbestos a mineral that separates into fibers and does not catch fire or conduct electricity. Asbestos is used to make fireproof materials and insulation.
ascend to go upward; climb; rise. [2 definitions]
ascent the act of going up; climb; rise. [2 definitions]
ascertain to learn without question; determine.
ash1 the soft gray powder that is left after something has been burned.
ash2 a tree that is related to the olive tree. It has seeds that look like wings and leaves of more than one part. [2 definitions]
ashamed feeling shame or guilt for doing something wrong or foolish. [3 definitions]
ashore to or onto the shore. [2 definitions]
Asia the largest continent. Asia is surrounded by the Pacific, Indian, and Arctic Oceans, the Red Sea, and eastern Europe. It is in the Eastern Hemisphere.
Asian of or having to do with Asia, or its people or languages. [2 definitions]
Asian American of or having to do with American people of Asian origin, or their history or culture. [2 definitions]
aside on or toward the side. [3 definitions]