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Meaning of pyrene

py•rene

Pronunciation: (pī'rēn, pī-rēn'), [key]
— n. Bot.
  1. a putamen or stone, esp. when there are several in a single fruit; a nutlet.

py•rene

Pronunciation: (pī'rēn), [key]
— n. Chem.
  1. a polycyclic, aromatic crystalline hydrocarbon, CH, consisting of four fused benzene rings, found in coal tar and believed to be carcinogenic.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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