| acetylcholine |
in biochemistry, the substance produced during nerve conduction that transmits nerve impulses across synapses and causes muscles to move. [1/2 definitions] |
| 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. |
| air curtain |
a draft of compressed air blown continuously across a doorway, usu. downward, to act as a door in maintaining interior temperature. |
| Amazon |
a major river that flows from the Andes in Peru across northern Brazil to the Atlantic. [1/3 definitions] |
| Amazon River |
a major river that flows from the Andes in Peru across northern Brazil to the Atlantic. |
| aqueduct |
a bridgelike structure designed to carry a waterway or pipe across a river or valley. [1/2 definitions] |
| arc |
of electricity, to leap across a gap between conductors. [1/4 definitions] |
| aslant |
crossing at a slant; slantingly across or over. [1/2 definitions] |
| astride |
on both sides of; extending over or across; spanning. [1/4 definitions] |
| athwart |
across. [1/4 definitions] |
| Atlas Mountains |
a range of mountains in northwest Africa stretching across the southwestern part of Morocco and northern parts of Algeria and Tunisia. |
| badminton |
a sport in which players use light, long-handled rackets to propel a shuttlecock back and forth across a high net. |
| baldric |
a belt, often decorated, that is worn over the shoulder and diagonally across the body to carry a sword or bugle. |
| bangs |
a straight-cut fringe of hair across the forehead. |
| banner |
a newspaper headline, usu. stretching across the page. [1/6 definitions] |
| bar1 |
to place a bar across. [1/13 definitions] |
| bisect |
to cut across or intersect, as a road by a railroad. [1/3 definitions] |
| bishop |
in the game of chess, a piece that can be moved diagonally across any number of unoccupied squares of the same color. [1/2 definitions] |
| boilerplate |
in journalism, written material created by a news agency or similar business that is typeset and ready to be used across various syndicated publications. [2/5 definitions] |
| brush1 |
to slightly touch or move lightly across. [1/8 definitions] |
| bulkhead |
a wall built across a tunnel to reinforce it and protect against fire, flood, and the like. [1/3 definitions] |