irisation

English

Noun

irisation

irisation (countable and uncountable, plural irisations)

1. (meteorology) 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.

References

• AMS Glossary of Meteorology

French

Etymology

From iriser +‎ -ation.

Pronunciation

• IPA^(key): /i.ʁi.za.sjɔ̃/

• Audio:

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Noun

irisation f (plural irisations)

1. iridescence

Further reading

• “irisation”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012.