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opalescence

American  
[oh-puh-les-uhns] / ˌoʊ pəˈlɛs əns /

noun

  1. a lustrous play of colors like that of an opal.

    This moonstone pendant has a lovely pearly opalescence.

Etymology

Origin of opalescence

opal + -escence

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.