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lux

[luhks]
noun, plural lu·ces [loo-seez] /ˈlu siz/, lux·es. 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
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Origin of lux

1885–90; < Latin lūx light1
Also called meter-candle.

Lux.

  1. Luxembourg.
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fiat lux

[fee-aht loo ks; English fee-aht luhks, fahy-uh t]
Latin.
  1. let there be light.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for lux

lux

1
noun plural 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-candleSymbol: lx
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Word Origin for lux

C19: from Latin: light

lux

2
verb
  1. NZ informal to clean with a vacuum cleaner
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Word Origin for lux

C20: from Electrolux, a vacuum-cleaner manufacturer

Lux.

abbreviation for
  1. Luxembourg
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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

Word Origin and History for lux

n.

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

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Online Etymology Dictionary, © 2010 Douglas Harper

lux in Medicine

lux

(lŭks)
n. pl. lux•es
  1. The International System unit of illumination, equal to one lumen per square meter.candle-meter meter-candle
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

lux in Science

lux

[lŭks]
Plural luxes luces (lōōsēz)
  1. A SI derived unit of illuminance in photometry, equal to one lumen per square meter.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.