Alphabetical index
calorie, Calorie, kcal
Units of measurement of energy, not part of the International System of Measures (SI). The preferred SI unit of energy is the joule.
candela
Unit of measurement of luminous intensity, symbol: cd.
centi
Prefix for a subdivision of 0.01 or 1/100, symbol: c.
Celsius
See degree Celsius.
centigrade
Obsolete name for the Celsius scale of temperature.
conversions
Conversions between metric and other units are best avoided as they interrupt the flow of the sentence and distract attention. Where they are unavoidable, provide the conversion (in brackets) at the first mention only and avoid spurious precision.
coulomb
Unit of measurement of electrical charge, symbol: C.