what is metronom?

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Request for Question Clarification by justaskscott-ga on 16 Sep 2005 13:30 PDT

There are various possible meanings to "metronom," as well as to
"metronome."  Could you specify what you are looking for, or in what
context you heard about it?

://www.google.com/search?hl=en&lr=&safe=off&oi=defmore&q=define:Metronome

Invented by Maelzel in 1816, the instrument is used to indicate the
exact tempo of a composition. An indication such as MM 60 indicates
that the pendulum, with a weight at the bottom, makes 60 beats per
minute. A slider is moved up and down the pendulum to decrease and
increase the tempo. MM = 80 means that the time value of a quarter
note is the equivalent of one pendulum beat when the slider is set at
80.

Hi Yuvo,
Since you posted your question with the subject "music", I expect that
you mean this.
As the word indicates, a metronome names the tempo it has been set to,
ticking on each beat (rather more "tocking" from the actual sound). 
Musicians use it when practicing to learn the proper tempo for a
musical passage.

http://www.pianoservice.de/

This German site presents many different types.  The wooden
pyramid-shaped ones are the tradition clockwork driven instrument that
Godairyfree described.
These days, of course, there are digital ones that are much smaller. 
The Wittner Metronom also can sound the standard 440 cycle A-tone for
tuning musical instruments.

There is even an online metronome  (English spelling with final E,
German, and probably other European languages, spell the word without
the E.)

http://www.metronomeonline.com/

Click the "on" square, or click on the A440 square for the tone.

If your posting the question under "health" indicates that you want
something else, please let us know.
Regards, Myoarin