- centimeter, centimetre, cm - a metric unit of length equal to one hundredth of a meter
--1 is a kind of metric linear unit
--1 is a part of decimeter, decimetre, dm
--1 has parts: millimeter, millimetre, mm - curium, Cm, atomic number 96 - a radioactive transuranic metallic element; produced by bombarding plutonium with helium nuclei
--2 is a kind of metallic element, metal