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iridesce

/ˌɪɹ.ɪˈdɛs/ verb

verb Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about iridesce at Wordnik → Where our words come from →

  1. Be iridescent.
    The corals iridesced under the surface of the clear water

Origin

Back-formation from iridescent.

From Wiktionary, via Kaikki.org (CC BY-SA)