Meanings
nounluminance (countable and uncountable, plural luminances)
plural luminances
- countableuncountableThe quality of being luminous.
- countableuncountableThe amount of light that passes through, is emitted, or is reflected from a particular area, and falls within a given solid angle.
- countableuncountableengineeringThe luminous flux emitted in a given direction divided by the product of the projected area of the source element perpendicular to the direction and the solid angle containing that direction (i.e. luminous intensity divided by unit area), measured in stilbs or apostilbs.
Synonyms & antonyms
Similar
photometric brightness
nounthe quality of being luminous; emitting or reflecting light
Similar
Broader
Synonym sets from Open English WordNet, CC BY 4.0.
Translations
Bulgarian осветеност
- осветеност (osvetenost)luminous intensity per unit area
Finnish luminanssi, valotiheys
- luminanssiluminous intensity per unit area
- valotiheysluminous intensity per unit area
German Leuchtdichte
- Leuchtdichteluminous intensity per unit area
Hungarian fénysűrűség
- fénysűrűségluminous intensity per unit area
Polish luminancja
- luminancjaluminous intensity per unit area
Portuguese luminância
- luminâncialuminous intensity per unit area
Rhymes & wordplay
Anagrams
Cite this entry
APA
luminance. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/luminance
MLA
“luminance.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/luminance. Accessed November 2, 2026.
Chicago
WatkinsX Dictionary, s.v. “luminance,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/luminance.
Source: luminance on Wiktionary, CC BY-SA 4.0.