What does "irisation" mean?

A colorful optical phenomenon seen in iridescent clouds and on the borders of lenticular clouds resembling those seen in soap bubbles and oil on a water surface.

What is a synonym for "irisation"?

Common synonyms include: light show, pearliness.

Irisation

noun

noun ·Rare ·Advanced level

Definitions

Noun

1
A colorful optical phenomenon seen in iridescent clouds and on the borders of lenticular clouds resembling those seen in soap bubbles and oil on a water surface. countable, uncountable

Synonyms

All synonyms

light show pearliness

Related phrases

iridescent cloud lenticular cloud

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.