Etymology
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opalescent (adj.)

"having variegated and changing colors like those of an opal," 1810, from opal + -escent. Perhaps via French opalescent.

updated on September 04, 2019

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Definitions of opalescent from WordNet

opalescent (adj.)
having a play of lustrous rainbow colors;
a milky opalescent (or opaline) luster
Synonyms: iridescent / nacreous / opaline / pearlescent
Etymologies are not definitions. From wordnet.princeton.edu, not affiliated with etymonline.

Dictionary entries near opalescent

op. cit.

opacity

opafication

opal

opalescence

opalescent

opaque

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OPEC

op-ed

open