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pyrene n. [蘋果.梨子等的] 核子 [蘋果.梨子等的] 核子 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 Pyrene \Py"rene\, n. [Gr. ? fire.] (Chem.)
One of the less volatile hydrocarbons of coal tar, obtained as a white crystalline substance, {C16H10}. [1913 Webster] Pyrene \Py"rene\, n. (Bot.) Same as {Pyrena}. [1913 Webster]
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