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polyene

[ pol-ee-een ]

noun

, Chemistry.
  1. a hydrocarbon containing two or more double bonds, often conjugated.

polyene

/ ˈpɒlɪˌiːn /

noun

  1. a chemical compound containing a chain of alternating single and double carbon-carbon bonds
“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

polyene

/ pŏl′ē-ēn′ /

  1. An organic compound containing at least four carbon atoms and at least two double bonds. Numerous naturally occurring plant pigments, such as carotenes, are polyenes.
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Word History and Origins

Origin of polyene1

First recorded in 1925–30; poly- + -ene

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polyembryonypolyester

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