/ Dictionary / Index D dioxane: Meaning and Definition of Find definitions for: di•ox•ane Pronunciation: (dī-ok'sān), [key] — n. Chem. a colorless, flammable, liquid cyclic ether, CHO, having a faint, pleasant odor: used chiefly in the varnish and silk industries and as a dehydrator in histology. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. diouf dioxide Related Content Daily Word Quiz: soporific Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language