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| py·ran [ p ràn ] (plural py·rans) |
noun |
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| Definition: |
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six-membered cyclic compound: either of two isomers of a crystalline cyclic compound with a ring consisting of five carbon atoms and an oxygen atom with two double bonds. It is best known for its benzene derivatives, which are naturally occurring dyes that produce the colors of flowers. C5H6O
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| [Early 20th century. <pyrone] |
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