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centimetre
A centimetre or centimeter, with SI symbol cm, is a unit of length in the International System of Units (SI) equal to one hundredth of a metre, centi- being the SI prefix for a factor of ???1/100???. Equivalently, there are 100 centimetres in 1 metre. The centimetre is the base unit of length in the now deprecated centimetre???gram???second (CGS) system of units.