/ Dictionary / Index N naphthacene: Meaning and Definition of Find definitions for: naph•tha•cene Pronunciation: (naf'thu-sēn", nap'-), [key] — n. Chem. an explosive solid compound, CH, derived from anthracene and coal tar: used for detonating high explosives, as TNT. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. naphtha naphthalene Related Content Daily Word Quiz: banshee Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language