the basic SI unit of luminous intensity; the luminous intensity in a given direction of a source that emits monochromatic radiation of frequency 540 × 1012 hertz and that has a radiant intensity in that direction of (1⁄683) watt per steradian
Symbol: cd. Also called: candle, standard candle
Word origin
C20: from Latin: candle
Candela in British English
(kænˈdiːlə)
noun
Felix. 1910–97, Mexican architect, noted for his naturalistic modern style and thin prestressed concrete roofs
candela in American English
(kænˈdilə; kænˈdɛlə)
noun
1.
the basic unit of luminous intensity in the SI system, now defined as the luminous intensity, in a given direction, of a source that emits monochromaticradiation of frequency 540 x 1012 hertz and that has a radiant intensity in that direction of 1⁄683 watt per steradian
abbrev. cd
adjective
2.
designating a style of cigar with a greenish wrapper