follow Dictionary.com

How do you spell Hannukah?

candela

[kan-dee-luh] /kænˈdi lə/
noun, Optics.
1.
a basic unit of luminous intensity in the International System of Units (SI), formally defined as the luminous intensity of a source that emits monochromatic radiation of frequency 540 × 10 12 hertz and that has a radiant intensity of 1/683 watt/steradian: adopted in 1979 as the international standard of luminous intensity.
Abbreviation: Cd.
Origin
1945-1950
1945-50; < Latin: candle
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
Examples from the web for candela
  • For historical reasons, the candela is the fundamental unit of light, even though the lumen is more simply defined.
British Dictionary definitions for candela

candela

/kænˈdiːlə; -ˈdeɪlə/
noun
1.
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 cd Also called candle, standard candle
Word Origin
C20: from Latin: candle

Candela

/kænˈdiːlə/
noun
1.
Felix. 1910–97, Mexican architect, noted for his naturalistic modern style and thin prestressed concrete roofs
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source
Word Origin and History for candela
n.

unit of luminous intensity, 1950, from Latin candela (see candle).

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
candela in Medicine

candela can·del·a (kān-děl'ə)
n.
Abbr. cd
A unit of measurement of luminous flux, equal to the amount of light given out through a solid angle by a source of one candela radiating equally in all directions. Also called candle.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
candela in Science
candela
  (kān-děl'ə)   
The SI unit used to measure the brightness of a source of light (its luminous intensity). By definition, one square centimeter of a blackbody at the freezing point of platinum emits one-sixtieth of a candela of radiation. See Table at measurement. See also lumen, luminous flux.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Encyclopedia Article for candela

unit of luminous intensity in the International System of Units (SI), defined as the luminous intensity in a given direction of a source that emits monochromatic radiation of frequency 540 1012 hertz and has a radiant intensity in that same direction of 1683 watt per steradian (unit solid angle). The candela has replaced the standard candle or lamp as a unit of luminous intensity in calculations involving artificial lighting and is sometimes called the "new candle."

Learn more about candela with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
Cite This Source

Word of the Day

Difficulty index for candela

Some English speakers likely know this word

Word Value for candela

10
13
Scrabble Words With Friends

Nearby words for candela