| arachnoid |
an arachnid. [5 definitions] |
| arachnophobia |
an irrational fear of spiders. |
| arak |
see "arrack." |
| Aral Sea |
formerly, a very large, single lake in Central Asia. Once one of the world's largest lakes, the Aral Sea has vastly diminished in volume of water and has divided into separate parts as a result of the diversion, for agricultural purposes, of the rivers that fed the lake. The southeastern part of the Aral Sea has become entirely dry. |
| Aramaic |
the Semitic language of ancient Syria, Palestine, and Southwest Asia. [3 definitions] |
| Arapaho |
a member of a North American Indian tribe that formerly lived in the western plains from Texas and New Mexico to Canada, and now lives in Oklahoma and Wyoming. [2 definitions] |
| arapaima |
a very large edible fish of the rivers of the Amazon region. |
| araroba |
a bitter yellow medicinal powder obtained from cavities in the trunk of a Brazilian tree; Goa powder. [2 definitions] |
| araucaria |
a cone-bearing evergreen native to the Southern Hemisphere and grown as an ornamental elsewhere. |
| Arawak |
a member of an Indian people once widespread throughout the West Indies, now living chiefly in northern South America. [2 definitions] |
| Arawakan |
a family of South American Indian languages that includes Arawak. |
| arbalest |
a medieval missile-launching weapon whose design is similar to that of a crossbow. |
| arbiter |
someone who has the authority to decide an issue or settle a dispute; arbitrator. |
| arbitrage |
the purchase of a security or commodity in one financial market and its immediate resale in a different market, used as a way to profit from the difference in market prices. [3 definitions] |
| arbitrager |
one that engages in arbitrage. |
| arbitrament |
the act of arbitrating. [2 definitions] |
| arbitrary |
resulting from whim or caprice instead of from a rule or reason. [3 definitions] |
| arbitrate |
to decide as an arbiter. [4 definitions] |
| arbitration |
the consideration and decision of an issue or dispute by an arbiter. [2 definitions] |
| arbitrator |
a person chosen to mediate and resolve disputes or controversies. [2 definitions] |
| arbor1 |
an arrangement of trees, vines, shrubs, or flowers, often supported by a lattice framework and forming a shady bower or shelter. |