candela(redirected from Candella)
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n. Abbr. cd
The SI unit of luminous intensity equal to 1/60 of the luminous intensity per square centimeter of a blackbody radiating at the temperature of solidification of platinum (2,046 K). See Table at measurement.
[Latin candēla, candle; see candle.]
(Units) 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 () watt per steradian. Symbol: cd Also called: candle or standard candle
[C20: from Latin: candle]
(Biography) Felix. 1910–97, Mexican architect, noted for his naturalistic modern style and thin prestressed concrete roofs
n., pl. -las.
a unit adopted in 1979 as the international standard of luminous intensity, defined as the luminous intensity of a source that emits monochromatic radiation of frequency 540 x 1012 hertz and that has a radiant intensity of 1/683 watt/steradian. Abbr.: cd
[1945–50; < Latin: candle]
A unit used to measure the brightness of a source of light. See Table at measurement.
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|Noun||1.||candela - the basic unit of luminous intensity adopted under the Systeme International d'Unites; equal to 1/60 of the luminous intensity per square centimeter of a black body radiating at the temperature of 2,046 degrees Kelvin|