Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A 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). Also called candle. See Table at measurement.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. In the International System of Units, the base 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

from the GNU version of the Collaborative International Dictionary of English

  • n. the basic unit of luminous intensity adopted under the System International d'Unites.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. 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

Etymologies

Latin candēla, candle; see candle.
(American Heritage® Dictionary of the English Language, Fourth Edition)

Examples

  • Unit of luminous intensity candela The candela is the luminous intensity, in a given direction, of a source that emits monochromatic radiation of frequency 540 x 1012 hertz and that has a radiant intensity in that direction of 1/683 watt per steradian.

    International System of Units (SI)

  • More formally, a candela is the intensity of a source that puts out yellow light at 1/683 watt per steradian of solid angle.

    BBC News - Home

  • Unfortunately, it wasn't - and after much searching the title of the track is 'candela' by Da Madd Dominikans (in case anyone else needs to find it).

    Amazon Online News and Classifieds

  • This redefinition would bring the kilogram into line with the six other base units that make up the International System of Units SI – the metre, the second, the ampere, the kelvin, the mole and the candela.

    Royal Society meets to weigh up the shrinking kilogram

  • I worked on the candela, a not-too-fancy move that I've nevertheless had persistent trouble with, and seem to have it down:

    Google and Self-flagellation

  • Following an international inquiry by the BIPM, which began in 1948, the 10th CGPM, in 1954, approved the introduction of the ampere, the kelvin and the candela as base units, respectively, for electric current, thermodynamic temperature and luminous intensity.

    International System of Units (SI)

  • :Ecodesign: come riscaldarsi con una candela in ufficio durante queste grigie e umide giornate d'inverno::.

    Turn a Candle Into a Radiator

  • Flashbangs produced an incredibly bright light—approximately two million candela, which even with eyes closed would cause a bleaching of the rhodopsin, the visual purple in the eye, creating the spots and temporary blindness most people have experienced and referred to as the flashbulb effect.

    State of the Union

  • Light intensity from the light distribution curve in candela (cd)

    3. Calculation of Illuminance

  • The term ‘light adaptation’ is used if the luminance is at least a few candela per square metre; if it is less than some hundredth parts of a candela per square metre one speaks of ‘dark adaptation’.

    2. Elements

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