| 单词 | pyrone |
| 释义 | Word Frequency 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 |
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