Meanings
nounblack light (countable and uncountable, plural black lights)
plural black lights · alternative blacklight
- countableA light bulb that emits ultraviolet light, usually used to create the illusion that anything white is glowing.
Blacklights and a mirrored disco ball Every night's another reason why I left it all
2020 April 3, Chappell Roan, Dan Nigro, “Pink Pony Club”performed by Chappell Roan
Synonyms & antonyms
nounUltraviolet radiation or light.
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Also see
Origin
From black + light, since ultraviolet light is invisible to the human eye.
Full word history & related roots →Translations
Chinese Mandarin 黑光燈 /黑光灯, 不可見光燈 /不可见光灯
- 黑光燈 /黑光灯 (hēiguāngdēng)light bulb that emits ultraviolet light
- 不可見光燈 /不可见光灯 (bùkějiànguāng dēng)light bulb that emits ultraviolet light
Finnish mustavalolamppu, UV-lamppu
- mustavalolamppulight bulb that emits ultraviolet light
- UV-lamppulight bulb that emits ultraviolet light
French lumière noire
- lumière noirelight bulb that emits ultraviolet light
German Schwarzlicht
- Schwarzlichtlight bulb that emits ultraviolet light
Japanese ブラックライト
- ブラックライト (burakku raito)light bulb that emits ultraviolet light
Norwegian black light
- black lightlight bulb that emits ultraviolet light
Polish lampa światła czarnego
- lampa światła czarnegolight bulb that emits ultraviolet light
Romanian bec negru, dark light
- bec negrulight bulb that emits ultraviolet light
- dark lightlight bulb that emits ultraviolet light
Russian ла́мпа чёрного света
- ла́мпа чёрного света (lámpa čórnovo sveta)light bulb that emits ultraviolet light
Spanish luz negra
- luz negralight bulb that emits ultraviolet light
Cite this entry
APA
black light. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/black%20light
MLA
“black light.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/black%20light. Accessed November 3, 2026.
Chicago
WatkinsX Dictionary, s.v. “black light,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/black%20light.
Source: black light on Wiktionary, CC BY-SA 4.0.