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(cd) n: the fundamental unit of luminous intensity in the metric system.

n: (cm) a unit of length in the metric system equal to one-hundredth of a metre (1-2 metre).

n: (cgs) a variant of the metric system in which the measures are founded on the centimetre, gram, and second rather than directly on the kilogram and metre.

n: (cm3) a commonly used unit of volume measurement in the metric system equal to 10-6 cubic metre, or I millilitre. The volume of a cube whose edge is 1 centimetre.

n: a unit of volume measurement in the metric system, replacing the previous stagnant unit known as the barrel, which was equivalent to 35 imperial gallons or 42 US gallons. The cubic metre equals approximately 6.2898 barrels.

n: ten times the newton, which is the unit of force in the metric system.

(H) n: the unit of self-inductance or mutual inductance in the metric system.

(Hz) n: a unit in the metric system used to measure frequency in cycles per second.

n: (SI) a system of units of measurement based on the metric system, adopted and described by the Eleventh General Conference on Weights and Measures. It provides an international standard of measurement to be followed when certain customary units, both US and metric, are eventually phased out of international trade operations. The symbol SI (Le Syste`me International dUnites) designates the system, which involves seven base units: (1) metre for length, (2) kilogram for mass, (3) second for time, (4) Celsius for temperature, (5) ampere for electric current, (6) candela for luminous intensity, and (7) mole for amount of substance. From these units, others are derived without introducing numerical factors.

n: (J) the unit used to measure heat, work, and energy in the metric system. It is the amount of energy required to move an object of I kilogram mass to a height of I metre. Also called a newton-metre.