pyrene Meaning, Definition & Usage
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noun a pale yellow crystalline hydrocarbon C16H10 extracted from coal tar
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noun the small hard nutlet of a drupe or drupelet; the seed and the hard endocarp that surrounds it
WordNet
Py"rene noun
Etymology
Gr. fire.Definitions
(Chem.) One of the less volatile hydrocarbons of coal tar, obtained as a white crystalline substance, C16H10 .
Py"rene noun
Definitions
(Bot.) Same as Pyrena .