- The definition of a decimeter is one tenth of a meter in length.
An example of a decimeter is the length of about 4 inches.
decimeter definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
one tenth of a meter (3.937 inches): abbrev. dm
Brit. sp. decimetre
Origin: French décimètre: see deci- and amp; meter
decimeter definition by American Heritage Dictionary
noun Abbr. dm
A metric unit of length equal to one-tenth (10-1) of a meter.