/ Dictionary / Index H hexanaphthene: Meaning and Definition of Find definitions for: hex•a•naph•thene Pronunciation: (hek"su-naf'thēn, -nap'-), [key] — n. Chem. cyclohexane. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. hexamethylenetetramine hexane Related Content Daily Word Quiz: blithesome Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language