(computing) The transmission speed of a communications channel; measured in bits or bytes per second.

(computing) A data transfer rate.

(cinematography) An aspect ratio in which a motion picture is formatted to fit a specific type of screen (historically 1.33:1), as opposed to original aspect ratio.

(cinematography) The aspect ratio of the rectangular shape that the director intended his or her motion picture to be viewed in, as opposed to modified aspect ratio.

a jack raised or lowered by means of a pawl and ratchet operated by a reversing lever

A toothed wheel either held in position or turned by an engaging detent or pawl. / The retaining wheel over the mainspring arbor of a timepiece.

(Britain, Royal Navy) A rating who is qualified to perform certain duties of seamanship.

Mechanically unreliable or in disrepair.

(informal) A mechanical device, particularly an automobile, that is worn out, run down, or mechanically unreliable as indicated by noises it makes in operation.

(aeronautics) The rate at which an aircraft can change its roll attitude, typically expressed in degrees per second