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English to English adjective
| 1 |
Of, pertaining to, or like, opal in appearance; having changeable colors like those of the opal. |  | source: webster1913 adjective satellite
| 2 |
having a play of lustrous rainbow colors | | Example: an iridescent oil slick
nacreous (or pearlescent) clouds looking like mother-of-pearl
a milky opalescent (or opaline) luster
source: wordnet30 noun
| 3 |
An opaline variety of yellow chalcedony. | | source: webster1913
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