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opalesce

[oh-puh-les] /ˌoʊ pəˈlɛs/
verb (used without object), opalesced, opalescing.
1.
to exhibit a play of colors like that of the opal.
Origin
1810-1820
1810-20; back formation from opalescent
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for opalesce

opalesce

/ˌəʊpəˈlɛs/
verb
1.
(intransitive) to exhibit a milky iridescence
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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