opalescent
having a play of lustrous rainbow colors (Freq. 1) - an iridescent oil slick - nacreous (or pearlescent) clouds looking like mother-of-pearl - a milky opalescent (or opaline) luster • Syn: iridescent, nacreous, opaline, pearlescent • Similar to: bright • Derivationally related forms: opalescence, opalesce, iridescence (for: iridescent), iridesce (for: iridescent)
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