Unicode has symbols for "cm" (㎝), for square centimetre (㎠) and for cubic centimetre (㎤); however, they are intended to be used only with East Asian fixed-width CJK fonts, so that they take up exactly as much space as one Chinese character does.
Centimeter (cm): A unit of measure in the metric system which is 1/100'th of a meter.
The centimeter is commonly used in medicine to state the size of objects or distance between points.
It may seem senseless to define a centimeter in a medical dictionary but in North American medicine (and medicine everywhere) today, length measurements are usually expressed in such metric units and not in inches or feet.