opalescence opalesce • opalescent · · · Info · Definitions · Synonyms · Characters · · opalescence · · Text Latin · · Script 11 · · Length Definitions · · · (noun) the visual property of something having a milky brightness and a play of colors from the surface. Synonyms: iridescence. · · Noun Definition 1 Synonyms · · · iridescence · · Synonym 1 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F p latin small letter p U+0070 s latin small letter s U+0073