Pearlescent vs. Opalescent

Pearlescent and Opalescent Definitions
Pearlescent
Having a pearly luster or gloss.
Opalescent
Exhibiting a milky iridescence like that of an opal.
Pearlescent
Pearl-like, either in color or luster.
Opalescent
Exhibiting a milky iridescence like that of an opal.
Pearlescent
Having an iridescent pearl-like surface, giving a play of lustrous rainbowlike colors; nacreous; pearlaceous.
Opalescent
Reflecting a milky or pearly light from the interior; having an opaline play of colors.
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Pearlescent
Having a play of lustrous rainbow-like colors;
An iridescent oil slick
Nacreous (or pearlescent) clouds looking like mother-of-pearl
A milky opalescent (or opaline) luster
Opalescent
Having a play of lustrous rainbow-like colors;
An iridescent oil slick
Nacreous (or pearlescent) clouds looking like mother-of-pearl
A milky opalescent (or opaline) luster