lux en · NOUN · etymology 1
Pronunciation
- (Southern-England) audio
- /lʌks/
Etymology
Borrowed from Latin lūx (“light”), from Proto-Indo-European *lewk- (“white; light; bright”). Cognates include Ancient Greek λευκός (leukós, “white, blank, light, bright, clear”), Ancient Greek λύκη (lúkē, “light, morning twilight”), Sanskrit रोचते (rocate), Middle Persian 𐭩𐭥𐭬 (rōz, “day”) and Old English lēoht (noun) (English light).
Meanings
-
In the International System of Units, the derived unit of illuminance or illumination; one lumen per square metre. Symbol: lx
Some volunteers slept in ambient light of about 100 lux and some in only 3 lux, which is close to total darkness.
2025 December 9, Veronique Greenwood, “Your Bedroom Probably Isn't Dark Enough”, in TIME:For quotations using this term, see Citations:lux.
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| luces | Number=Plur | rare | lexicographic |
| luxes | Number=Plur | lexicographic | |
| lux | Number=Plur | lexicographic |
Deriveds
isolux · microlux · millilux · sublux · kilolux · luxmeter
Relateds
Translations (21)
eo lukso (the derived unit of illuminance) · id lux (the derived unit of illuminance) · ru люкс (the derived unit of illuminance) · th ลักซ์ (the derived unit of illuminance) · de Lux (the derived unit of illuminance) · lt liuksas (the derived unit of illuminance) · it lux (the derived unit of illuminance) · fr lux (the derived unit of illuminance) · sv lux (the derived unit of illuminance) · pt lux (the derived unit of illuminance) · bg лукс (the derived unit of illuminance) · es lux (the derived unit of illuminance) · cmn 勒克斯 (the derived unit of illuminance) · fi luksi (the derived unit of illuminance) · el λουξ (the derived unit of illuminance) · ro lux (the derived unit of illuminance) · ko 럭스 (the derived unit of illuminance) · cs lux (the derived unit of illuminance) · pl luks (the derived unit of illuminance) · ja ルクス (the derived unit of illuminance) · ms lux (the derived unit of illuminance)