| aardvark |
a large mammal with a long snout, long ears, a long tail, and with long fur mostly around its legs. Aardvarks are active at night, when they use their powerful claws to dig open ant or termite nests. They catch their food with their long, sticky tongue. Aardvarks live in southern and central Africa. Although they are sometimes called anteaters, aardvarks are not closely related to any other kind of mammal. |
| aback |
so that the wind catches the front side of an open sail. [1/2 definitions] |
| accessible |
susceptible to; open (usu. fol. by "to"). [1/3 definitions] |
| achene |
a small, dry, hard seed that is attached at a single point and that does not split open when it is mature. |
| aeolian harp |
a musical instrument consisting of an open box with gut strings stretched across it that produce rising and falling sounds when wind passes over them. |
| afield |
in, on, or to open land. [1/3 definitions] |
| agape1 |
open-mouthed in wonder or astonishment. [3/4 definitions] |
| agoraphobia |
an abnormal fear of open or public spaces. |
| air |
to open to the air or put outdoors. [1/6 definitions] |
| air hole |
an open place in the frozen surface of a lake, pond, or stream. [1/3 definitions] |
| airtight |
having no weak points that could be open to attack. [1/2 definitions] |
| airy |
open to the flow of air. [1/2 definitions] |
| aisle |
an open space to walk between rows of seats or shelves. |
| alfresco |
in the open air; outdoors. [1/2 definitions] |
| aliphatic |
indicating an organic chemical compound in which the carbon atoms make an open chain. |
| amenable |
capable of or open to a test or judgment. [1/3 definitions] |
| amphitheater |
an oval or round building with seats rising in rows from an open, central area. Amphitheaters are used for sports and other public events. |
| antrum |
a cavity within a bone, such as the pair of sinuses in the upper jaw that open into the nose. |
| arch1 |
a round structure over an open space such as a door. |
| assailable |
open to attack or assault; vulnerable. |
| atrium |
a courtyard inside a building, either open to the sky or with a glass ceiling. [1/2 definitions] |