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The base unit of luminous intensity in the International System of Units that is equal to the luminous intensity in a given direction of a source which emits monochromatic radiation of frequency and has a radiant intensity in that direction of watt per unit solid angle; abbreviation cd and also called a candle.
This entry is located in the following unit: candle- (page 1)
Word Entries at Get Words: “candela
candela, cd
An SI unit of luminous intensity, which replaced the old units of candle and standard candle.

It measures the brightness of a light itself rather than the amount of light falling on an object, which is called illuminance and measured in lux.

This entry is located in the following unit: Measurements and Mathematics Terms (page 4)