1. Noun
One of the less volatile hydrocarbons of coal tar, obtained as a white crystalline substance, C16H10.
2. Noun
Same as Pyrena.
3. Noun
a pale yellow crystalline hydrocarbon C16H10 extracted from coal tar
Vocabulary classified under Chemistry
4. Noun
the small hard nutlet of a drupe or drupelet; the seed and the hard endocarp that surrounds it
Vocabulary classified under Nature and environment
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