from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Music A device used to mark time by means of regularly recurring ticks or flashes at adjustable intervals.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. a device, containing an inverted pendulum, used to mark time by means of regular ticks at adjustable intervals; an electronic equivalent that emits flashes
from the GNU version of the Collaborative International Dictionary of English
- n. An instrument consisting of a short pendulum with a sliding weight. It is set in motion by clockwork, and serves to measure time in music.
from The Century Dictionary and Cyclopedia
- n. A mechanical contrivance for marking time, especially as an aid in musical study or performance.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. clicking pendulum indicates the exact tempo of a piece of music
Greek metron, measure; + Greek nomos, rule, division.(American Heritage® Dictionary of the English Language, Fourth Edition)