Noun: lux
| Singular | lux |
| Plural | lux; luxes |
Sample Sentences
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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:]
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For quotations using this term, see Citations:lux.
Nouns inflected like lux
lux,
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). See: Latin Nouns '
lūx', English Nouns '
light'.