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pyrone

[ pahy-rohn, pahy-rohn ]

noun

, Chemistry.
  1. either of two heterocyclic ketones having the formula C 5 H 4 O 2 .


pyrone

/ ˈpaɪrəʊn; paɪˈrəʊn /

noun

  1. either of two heterocyclic compounds that have a ring containing five carbon atoms and one oxygen atom with two double bonds and a second oxygen atom attached to a carbon atom in either the ortho -position ( alpha pyrone ) or the para -position ( gamma pyrone )
  2. any one of a class of compounds that are substituted derivatives of a pyrone
“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


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Word History and Origins

Origin of pyrone1

First recorded in 1890–95; pyr- + -one
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Example Sentences

We may here include various coumarin and benzo-γ-pyrone derivatives.

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pyromucic aldehydepyronine