In geometry, one of the reference lines by which a point on a graph may be located. The horizontal axis is usually referred to as the x-axis, and the vertical axis as the y-axis. The term is also used to refer to the imaginary line about which an object may be said to be symmetrical (axis of symmetry)—for example, the diagonal of a square—or the line about which an object may revolve (axis of rotation).(Irregular plural: axes).
A straight line through a body or figure that satisfies certain conditions.
The center around which something rotates; SYN. axis of rotation.
cop / kɑːp /
A policeman or policewoman.
tackle / tækl̩ /
ETYM Old Eng. takel, akin to lg. and Dutch takel, Dan. takkel, Swed. tackel; perhaps akin to Eng. taw, v.t, or to take.
1. A set of the equipment used in a particular activity; gear.
2. A ship's rigging; an assemblage of ropes and pulleys arranged to gain mechanical advantage for hoisting and pulling.
3. A position on the line of scrimmage.
ETYM Old Eng. winche, AS. wince a winch, a reel to wind thread upon. Related to Wink.
(Irregular plural: winches).
A horizontal cylinder turned by a crank on which a cable or rope winds; SYN. windlass.
windlass / wɪndləs /
1. Winch used to raise a ship's anchor.
2. Circuitous movement; indirect action.
ETYM French cabestan, from Spanish cabestrante, cabrestante, from cabestrar to bind with a halter, from cabestrohalter, from Latin capistrum halter, from capere to hold (see Capacious).
A windlass rotated in a horizontal plane.
Upright device for winding in heavy ropes or cables.
On a tape recorder, a polished metal post against which a turning rubber wheel (called a pinch roller) presses to move a length of magnetic tape placed between the wheel and the post. The capstan controls the speed of the tape as it moves past the recording head. See also pinch roller.