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lux

[luhks] /lʌks/
noun, plural luces
[loo-seez] /ˈlu siz/ (Show IPA),
luxes. Optics.
1.
a unit of illumination, equivalent to 0.0929 foot-candle and equal to the illumination produced by luminous flux of one lumen falling perpendicularly on a surface one meter square. Symbol: lx.
Also called meter-candle.
Origin
1885-1890
1885-90; < Latin lūx light1

Lux.

fiat lux

[fee-aht loo ks; English fee-aht luhks, fahy-uh t] /ˈfi ɑt ˈlʊks; English ˈfi ɑt ˈlʌks, ˈfaɪ ət/
Latin.
1.
let there be light.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for lux

lux1

/lʌks/
noun (pl) lux
1.
the derived SI unit of illumination equal to a luminous flux of 1 lumen per square metre. 1 lux is equivalent to 0.0929 foot-candle lx
Word Origin
C19: from Latin: light

lux2

/lʌks/
verb
1.
(NZ, informal) to clean with a vacuum cleaner
Word Origin
C20: from Electrolux, a vacuum-cleaner manufacturer

Lux.

abbreviation
1.
Luxembourg
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
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Word Origin and History for lux
n.

unit of illumination, 1889, from Latin lux "light" (see light (n.)).

Online Etymology Dictionary, © 2010 Douglas Harper
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lux in Medicine

lux (lŭks)
n. pl. lux·es or lu·ces (lōō'sēz)
Abbr. lx
The International System unit of illumination, equal to one lumen per square meter. Also called candle-meter, meter-candle.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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lux in Science
lux
  (lŭks)   
Plural luxes or luces (l'sēz)
A SI derived unit of illuminance in photometry, equal to one lumen per square meter.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Related Abbreviations for lux

lux

luxurious

Lux.

Luxembourg
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Encyclopedia Article for lux

unit of illumination (see luminous intensity) in the International System of Units (SI). One lux (Latin for "light") is the amount of illumination provided when one lumen is evenly distributed over an area of one square metre. This is also equivalent to the illumination that would exist on a surface all points of which are one metre from a point source of one international candle (candela). One lux is equal to 0.0929 foot-candle.

Learn more about lux with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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