noun.
a device, containing an inverted pendulum, used to mark time by means of regularticks at adjustableintervals; an electronic equivalent that emits flashes
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
clicking pendulum indicates the exact tempo of a piece of music
Word Usage
"Along with the metronome, which is a key tool in ChiRunning and ChiWalking, the other important accessory is a good watch."