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pyrene
1[ pahy-reen, pahy-reen ]
noun
Botany.
- a putamen or stone, especially when there are several in a single fruit; a nutlet.
pyrene
2[ pahy-reen ]
noun
Chemistry.
- a polycyclic, aromatic crystalline hydrocarbon, C 1 6 H 1 0 , consisting of four fused benzene rings, found in coal tar and believed to be carcinogenic.
pyrene
1/ ˈ±è²¹Éª°ù¾±Ë²Ô /
noun
- a solid polynuclear aromatic hydrocarbon extracted from coal tar. Formula: C 16 H 10
pyrene
2/ ˈ±è²¹Éª°ù¾±Ë²Ô /
noun
- botany any of several small hard stones that occur in a single fruit and contain a single seed each
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˜yÐÄvlog History and Origins
Origin of pyrene1
1830–40; < New Latin ±è²âÌ„°ùŧ²Ô²¹ < Greek ±è²âÌ„°ùḗn fruit stone
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˜yÐÄvlog History and Origins
Origin of pyrene1
C19: from pyro- + -ene
Origin of pyrene2
C19: from New Latin pyrena, from Greek ±è³Ü°ùŧ²Ô
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Example Sentences
Examples have not been reviewed.
Others of the crew, who had hastily donned masks to protect themselves from the choking vapour, were busily engaged in hurling pyrene into the seat of the conflagration.
From
From the tar distillate, the chrysene can be fractionally precipitated, and the fluoranthene can be separated from most of the pyrene by fractional distillation in a partial vacuum.
From
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