lux

[luhks]

See more synonyms for lux on Thesaurus.com

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.

Lux.

Luxembourg.

fiat lux

[fee-aht loo ks; English fee-aht luhks, fahy-uh t]

Latin.

let there be light.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for lux

Contemporary Examples

To put that into perspective, indoor lighting is about 100 lux, while a bright, sunny day can hit 50,000 lux or more.
Fight Seasonal Affective Disorder With This New Tracker
DailyBurn
November 7, 2014
The “gold standard” dose is 30 minutes of 10,000 lux light, one hour of 5,000 lux light or two hours of 2,500 lux light.
Fight Seasonal Affective Disorder With This New Tracker
DailyBurn
November 7, 2014
However, an overcast sky (like you see often during the winter) usually ranks at only 1,000 lux or lower.
Fight Seasonal Affective Disorder With This New Tracker
DailyBurn
November 7, 2014
Lux entered the stage dressed head to toe in white, accompanied by an entourage.
America’s Poets: Battle Rap Gets Real
Rich Goldstein
July 15, 2014
Even Loaded Lux could not keep a straight face, smiling as his competitor established a clear, early lead and never let up.
America’s Poets: Battle Rap Gets Real
Rich Goldstein
July 15, 2014

Historical Examples

Lux Mundi—what a curious device to connect with such a subject!
The Early Short Fiction of Edith Wharton, Part 1 (of 10)
Edith Wharton
The same is true of any other matter, lux metal or relux—it will penetrate.
Invaders from the Infinite
John Wood Campbell
The lux is stronger than relux, and is therefore used for an outer shell.
Invaders from the Infinite
John Wood Campbell
In the beginning the creative word was Fiat lux—let there be light.
Printing and the Renaissance
John Rothwell Slater
In the Vulgate, Fiat lux, which is much the same as the Greek.
The Mosaic History of the Creation of the World
Thomas Wood

British Dictionary definitions for lux

lux¹

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

C19: from Latin: light

lux²

verb

NZ informal to clean with a vacuum cleaner

Word Origin

C20: from Electrolux, a vacuum-cleaner manufacturer

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

Word Origin and History for lux

n.

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

lux in Medicine

lux

(lŭks)

n. pl. lux•es

The International System unit of illumination, equal to one lumen per square meter.candle-meter meter-candle

lux in Science

lux

[lŭks]

Plural luxes luces (lōō′sēz)

A SI derived unit of illuminance in photometry, equal to one lumen per square meter.

lux

Origin of .css-1fxfie5{font-size:22px;}@media (max-width:768px){.css-1fxfie5{font-size:18px;margin:0 10px 10px 0;word-break:break-all;word-wrap:break-word;-webkit-hyphens:auto;-moz-hyphens:auto;-ms-hyphens:auto;hyphens:auto;line-height:22px;}}lux

Lux.

fiat lux

Examples from the Web for lux

Contemporary Examples

To put that into perspective, indoor lighting is about 100 lux, while a bright, sunny day can hit 50,000 lux or more.

The “gold standard” dose is 30 minutes of 10,000 lux light, one hour of 5,000 lux light or two hours of 2,500 lux light.

However, an overcast sky (like you see often during the winter) usually ranks at only 1,000 lux or lower.

Lux entered the stage dressed head to toe in white, accompanied by an entourage.

Even Loaded Lux could not keep a straight face, smiling as his competitor established a clear, early lead and never let up.

Historical Examples

Lux Mundi—what a curious device to connect with such a subject!

The same is true of any other matter, lux metal or relux—it will penetrate.

The lux is stronger than relux, and is therefore used for an outer shell.

In the beginning the creative word was Fiat lux—let there be light.

In the Vulgate, Fiat lux, which is much the same as the Greek.

lux.css-pdubzd{font-size:17px;vertical-align:super;}1

Word Origin

lux2

Word Origin

Lux.

Word Origin and History for lux

n.

lux

lux

Origin of lux

lux¹

lux²