opalesces

'opalesces'

[opalesce.v.01] as in: reflect light or colors like an opal

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Examples:
Distant clouds opalesce like pale brocade
raindrops caught in a sunbeam seem to opalesce

'opalesces'

[opalesce.v.02] as in: exhibit a play of colors like that of an opal

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Examples:
This nitrate opalesces under certain conditions