Etymology
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opalescence (n.)

"iridescence like that of an opal, a play of colors milky rather than brilliant," 1792; see opalescent + -ence. Perhaps via French opalescence.

updated on August 29, 2019

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Definitions of opalescence from WordNet

opalescence (n.)
the visual property of something having a milky brightness and a play of colors from the surface;
Synonyms: iridescence
Etymologies are not definitions. From wordnet.princeton.edu, not affiliated with etymonline.

Dictionary entries near opalescence

*op-

op. cit.

opacity

opafication

opal

opalescence

opalescent

opaque

ope

OPEC

op-ed