Pyrone
[pahy-rohn, pahy-rohn] /ˈpaɪ roʊn, paɪˈroʊn/
noun, Chemistry.
1.
either of two heterocyclic ketones having the formula C 5 H 4 O 2 .
/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
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