Plural of dioxane; multiple compounds or molecules of dioxane, or a class of similar chemical compounds with two oxygen atoms.
From 'dioxane' + English plural '-s.' This plural form allows discussion of multiple dioxane molecules or isomeric variants of the compound in chemical literature.
Chemists studying a contaminated water supply might detect 'dioxanes' when they find multiple different versions of these oxygen-ring molecules all mixed together!
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