pyrene

1
[pahy-reen, pahy-reen]
|

noun Botany.

a putamen or stone, especially when there are several in a single fruit; a nutlet.

Origin of pyrene

1
1830–40; < New Latin pȳrēna < Greek pȳrḗn fruit stone

pyrene

2
[pahy-reen]

noun Chemistry.

a polycyclic, aromatic crystalline hydrocarbon, C16H10, consisting of four fused benzene rings, found in coal tar and believed to be carcinogenic.

Origin of pyrene

2
First recorded in 1880–85; pyr- + -ene
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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Historical Examples of pyrene


British Dictionary definitions for pyrene

pyrene

1

noun

a solid polynuclear aromatic hydrocarbon extracted from coal tar. Formula: C 16 H 10

Word Origin for pyrene

C19: from pyro- + -ene

pyrene

2

noun

botany any of several small hard stones that occur in a single fruit and contain a single seed each

Word Origin for pyrene

C19: from New Latin pyrena, from Greek purēn
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012