Tachometer definition
An instrument used to measure the rotations per minute of a rotating shaft.
noun
A device that indicates or measures the rotational speed of a spinning shaft.
noun
A device for measuring the revolutions per minute (RPMs) of a revolving shaft, as with the driveshaft of an automobile.
noun
A device for measuring or indicating velocity or speed, as of blood, a river, a machine, etc.
noun
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Other Word Forms
Noun
Singular:
tachometer
Plural:
tachometers