lux

[ luhks ]
/ lʌks /

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

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

Origin of lux

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

Definition for lux (2 of 3)

Definition for lux (3 of 3)

fiat lux
[ fee-aht loo ks; English fee-aht luhks, fahy-uh t ]
/ ˈfi ɑt ˈlʊks; English ˈfi ɑt ˈlʌks, ˈfaɪ ət /

Latin.

let there be light.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for lux

British Dictionary definitions for lux (1 of 3)

lux1
/ (lʌks) /

noun plural lux

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

Word Origin for lux

C19: from Latin: light

British Dictionary definitions for lux (2 of 3)

lux2
/ (lʌks) /

verb

NZ informal to clean with a vacuum cleaner

Word Origin for lux

C20: from Electrolux, a vacuum-cleaner manufacturer

British Dictionary definitions for lux (3 of 3)

Lux.

abbreviation for

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

Medicine definitions for lux

lux
[ lŭks ]

n. pl. lux•es

The International System unit of illumination, equal to one lumen per square meter.candle-meter meter-candle
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for lux

lux
[ lŭks ]

Plural luxes luces (lōōsēz)

A SI derived unit of illuminance in photometry, equal to one lumen per square meter.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.