candlepower

[kan-dl-pou-er]

can·dle·pow·er

[kan-dl-pou-er]
noun Optics.
(formerly) a measure of luminous intensity expressed in candles.
Also, candle power.


Origin:
1875–80; candle + power
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Candlepower is always a great word to know.
So is bezoar. Does it mean:
the offspring of a zebra and a donkey.
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
Collins
World English Dictionary
candlepower (ˈkændəlˌpaʊə)
 
n
the luminous intensity of a source of light in a given direction: now expressed in candelas but formerly in terms of the international candle

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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American Heritage
Science Dictionary
candlepower   (kān'dl-pou'ər)  Pronunciation Key 
Luminous intensity, expressed in candelas.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Britannica
Encyclopedia

candlepower

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 candlepower with a free trial on Britannica.com.

Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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