 pyrene |
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| 1. | [ noun ] (chemistry) a pale yellow crystalline hydrocarbon C16H10 extracted from coal tar | |
| Related terms: | hydrocarbon | |
| 2. | [ noun ] (botany) the small hard nutlet of a drupe or drupelet; the seed and the hard endocarp that surrounds it | |
| Related terms: | nutlet | |
| Similar spelling: |
Pyron |
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