| artifact |
any object made by human beings, especially one of an earlier era. |
| artificial |
made by human beings; not natural. [2 definitions] |
| 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] |
| art room |
a room in a school where art is taught and where art materials are kept. |
| As |
symbol of the chemical element arsenic. |
| as1 |
in equal measure; to the same extent. [7 definitions] |
| ASAP |
abbreviation of "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] |
| ashtray |
a small bowl or other container used for depositing ashes from burning tobacco such as in cigarettes, cigars, or pipes, and also used for stamping out the ends of cigarettes or cigars when one is finished smoking. |