different between unsaturated vs thiopyran

English

un- +? saturated

unsaturated (not comparable)

(chemistry, of a solution) Not saturated; capable of dissolving more of a solute at the same temperature.
(chemistry) Of a compound containing atoms sharing more than one valence bond, especially of an organic compound having one or more double bonds or triple bonds between carbon atoms.
(of a colour) Not chromatically pure; diluted.

thiopyran (plural thiopyrans)

(organic chemistry) An unsaturated six-membered heterocycle consisting of five carbon atoms. one sulfur atom and two double bonds

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