Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. One who keeps track of time; a timekeeper.
  • n. A timepiece, especially one used for measuring and signaling the end of time intervals, as on a stove.
  • n. A switch or regulator that controls or activates and deactivates another mechanism at set times.
  • n. A device that controls the timing of the sparks that ignite the fuel in an internal-combustion engine.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Someone or something which times.
  • n. A device used to measure amounts of time.
  • n. Any electronic function that causes a device to be able to do something automatically after a preset amount of time.

from the GNU version of the Collaborative International Dictionary of English

  • n. A timekeeper; especially, a watch by which small intervals of time can be measured; a kind of stop watch. It is used for timing the speed of horses, machinery, etc.
  • n. In electric ignition, an adjustable device for automatically timing the spark.

from The Century Dictionary and Cyclopedia

  • n. One who keeps or measures and records time; a timekeeper.
  • n. A form of stop-watch for recording or indicating short intervals of time.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a regulator that activates or deactivates a mechanism at set times
  • n. a timepiece that measures a time interval and signals its end
  • n. (sports) an official who keeps track of the time elapsed

Etymologies

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