candela
can·de·la
noun \kan-ˈdē-lə, -ˈdel-ə\Definition of CANDELA
: 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 540 × 1012 hertz and has a radiant intensity in that direction of 1⁄683 watt per unit solid angle—abbreviation cd; called also candle
