tachometer
(sports) An umpire or judge; an official who makes sure the rules are followed during a game. / A person who settles a dispute.
(idiomatic) From the beginning; starting with no advantage or prior preparation. / (idiomatic) From basic materials or raw ingredients.
A device for measuring the revolutions per minute (RPMs) of a revolving shaft, as with the driveshaft of an automobile.
(transitive) To restore (a mothballed project or equipment) to active use.
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