irisation

== English == === Noun === irisation (countable and uncountable, plural irisations) (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/ === Noun === irisation f (plural irisations) iridescence === Further reading === “irisation”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012