Dictionary

nox en · NOUN · etymology 1

Pronunciation

• (General-American) audio

Etymology

Etymology tree Proto-Indo-European *nókʷts Proto-Italic *nok⁽ʷ⁾ts Latin noxlbor. English nox Learned borrowing from Latin nox, from Proto-Italic *nok⁽ʷ⁾ts, from Proto-Indo-European *nókʷts.

Meanings

1. The period of darkness in each twenty-four hours; a night.

Forms

nox en · NOUN · etymology 2

Pronunciation

• (General-American) audio

Etymology

From Latin nox (“night; darkness”), by analogy with lux from Latin lūx (“light; daylight, day”). Doublet of night.

Meanings

1. (rare) millilux (unit of illuminance)

Forms

nox en · NOUN · etymology 3

Pronunciation

• (General-American) audio

Etymology

From N (“nitrogen”) + ox (“oxide”).

Meanings

1. (alt-of, alternative, uncountable) Alternative form of NOx (nitrogen oxides)
   alt of NOx
2. (abbreviation, alt-of, uncountable) Abbreviation of nitrous oxide (“N₂O”).
   alt of nitrous oxide
   • Near-synonym: nos

Coordinates

nitric oxide · nitrogen dioxide

Hypernyms

compound · nitrogen oxide · substance · oxide · NOx · material · nox

Synonyms

nos

wikidata: Q424418 · wikidata: Q905750