timer Meaning, Definition & Usage
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noun a timepiece that measures a time interval and signals its end
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noun (sports) an official who keeps track of the time elapsed
timekeeper.
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noun a regulator that activates or deactivates a mechanism at set times
WordNet
Tim"er noun
Definitions
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.
