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''opalescence'' ▫ᴱᴺ｜Definition｜1st｜20260125204041-00-⌔
opalescence - Wiktionary, the free dictionary
English
Noun
opalescence (countable and uncountable, plural opalescences)
- the state of being opalescent
- (physics) the milky iridescent appearance of a dense transparent medium when it is illuminated by polychromatic visible radiation (such as sunlight) due to local fluctuations in its density and therefore in its refractive index
Etymology
From opal + -escence.
Pronunciation
- (Australian) IPA: /ˌəʉpəˈlesəns/
- Audio (US): 🔊
Printed 2026-06-28.
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