| aba |
a sleeveless outer garment made of this fabric. [1/2 definitions] |
| alley1 |
the space between the two outer sets of lines on each side of a tennis court, used only in doubles. [1/5 definitions] |
| archiblast |
the outer layer of an embryo in a very early, two-layered stage of development. [1/2 definitions] |
| arctic |
(pl.) warm, waterproof outer shoes. [1/5 definitions] |
| aril |
a second or outer covering of some seeds. |
| atmosphere |
the gases that are in the space around the earth and other similar objects in outer space. [1/2 definitions] |
| Aurora |
(l.c.) bands or streamers of light that appear in the sky at night in areas around the magnetic poles, caused by solar particles striking atoms in the outer part of the earth's atmosphere. (See aurora australis, aurora borealis.) [1/3 definitions] |
| balcony |
an elevated platform projecting from the outer wall of a building, surrounded with a railing or low restraining wall. [1/2 definitions] |
| bast |
the strong fibrous outer layer of certain plant stems, such as flax or hemp, consisting of phloem tissue, and used in manufacturing cordage or woven goods. [1/2 definitions] |
| bay window |
a windowed section protruding from the outer wall of a building, so as to form an alcove within. |
| bill2 |
the hard outer part of a bird's mouth that sticks out from its face. A bill is made up of a lower part and an upper part; beak. |
| bioastronautics |
(used with a sing. verb) the science of the effects of outer space and space travel on living organisms. |
| blister |
a thin, bubble-like swelling of the outer skin, resulting from a burn or other injury and containing fluid. [1/5 definitions] |
| border |
the outer part; edge. [1/2 definitions] |
| bound3 |
(usu. pl.) the area contained within or lying near a boundary or outer limit of something. [1/4 definitions] |
| bran |
the outer layer of wheat and other cereal grains. |
| cachet |
a waferlike outer covering used to envelop bad-tasting medicine. [1/4 definitions] |
| caliber |
the outer diameter of a bullet or artillery shell. [1/3 definitions] |
| caliper |
(usu. pl.) an instrument usu. having two hinged, curved legs and used to measure inner or outer dimensions, thicknesses, and distances between surfaces. [1/3 definitions] |
| capsid |
the outer protein shell of a virus particle that surrounds its nucleic acid. |
| case2 |
a protective or ornamental outer covering. [1/5 definitions] |