| aqua regia |
a volatile, corrosive mixture of nitric and hydrochloric acids, used for dissolving gold and platinum and for testing metals. |
| aquarelle |
(French) watercolor painting with transparent colors, or a painting done by this technique. |
| aquarist |
one who maintains a private aquarium or is curator or director of a public aquarium. |
| aquarium |
an artificial pond or container filled with water in which aquatic forms of life are kept. [2 definitions] |
| Aquarius |
an autumn zodiacal constellation located between Capricornus and Pisces; Water Bearer. [3 definitions] |
| aquatic |
of, in, or taking place on the water. [4 definitions] |
| aquatint |
a type of etching that achieves the soft sweeping tones of a wash drawing or watercolor by careful control of the length of time acid is left on any given area of the etching plate. |
| aquavit |
a strong, colorless Scandinavian liquor flavored with caraway seeds. |
| aqua vitae |
alcohol. [2 definitions] |
| aqueduct |
a channel built to convey water from a long distance. [2 definitions] |
| aqueous |
of, relating to, or similar to water. [3 definitions] |
| aqueous humor |
a clear, watery liquid that fills the chambers between the cornea and the lens of the eye. |
| aquiculture |
the growing of plants, often for their edible fruits, in nutrient water or water-soaked inert material rather than in soil; hydroponics. [2 definitions] |
| aquifer |
a bed of rock, sand, or gravel that can hold great quantities of water and supplies it to wells and springs. |
| Aquila |
a summer constellation in the northern sky, located between Lyra and Capricornus and the bright star Altair; Eagle. |
| aquiline |
of or resembling an eagle. [2 definitions] |
| -ar1 |
of or pertaining to. [2 definitions] |
| -ar2 |
one that acts as an agent or performs. |
| Ar |
symbol of the chemical element argon. |
| AR |
abbreviation of "Arkansas," a south central U.S. state between Mississippi and Oklahoma. |
| Arab |
a member of the Semitic people that originated in Arabia and now forms the dominant population in that and other Middle Eastern countries. [4 definitions] |