Opaline meaning

ōpəlēn, ōpəlīn, ōpəlin
Of or like opal.
adjective
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Resembling opal in its iridescence.
adjective
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A clear-to-white liquid secreted by sea hares (genus Aplysia) that becomes viscous upon contact with water.

The attack on a sea hare by a spiny lobster causes release of the whitish opaline, followed the co-release of both opaline and ink.

noun
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(mineralogy) Any of several minerals resembling opal.
noun
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