opalescence
/ˌoʊpəˈlɛsəns/
noun
- A milky, iridescent play of colors like that of an opal.
- The soap bubble displayed a beautiful opalescence before it popped.
- The opalescence of the gemstone shifted from blue to green as she turned it in the light.
- The artist captured the opalescence of the morning sky in her watercolor painting.
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