pyrene
[蘋果.梨子等的] 核子
Py·rene n. Chem. One of the less volatile hydrocarbons of coal tar, obtained as a white crystalline substance, C16H10.
Py·rene, n. Bot. Same as Pyrena.
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pyrene
n 1: a pale yellow crystalline hydrocarbon C16H10 extracted from
coal tar
2: the small hard nutlet of a drupe or drupelet; the seed and
the hard endocarp that surrounds it