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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/ 藞辫补瑟谤颈藧苍 /
noun
- a solid polynuclear aromatic hydrocarbon extracted from coal tar. Formula: C 16 H 10
pyrene
2/ 藞辫补瑟谤颈藧苍 /
noun
- botany any of several small hard stones that occur in a single fruit and contain a single seed each
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亚洲网紅露点 History and Origins
Origin of pyrene1
1830鈥40; < New Latin 辫测虅谤脓苍补 < Greek 辫测虅谤岣梟 fruit stone
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亚洲网紅露点 History and Origins
Origin of pyrene1
C19: from pyro- + -ene
Origin of pyrene2
C19: from New Latin pyrena, from Greek 辫耻谤脓苍
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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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