/ Dictionary / Index H helicon: Meaning and Definition of Find definitions for: hel•i•con Pronunciation: (hel'i-kon", -kun), [key] — n. a coiled tuba carried over the shoulder and used esp. in military bands. Cf. sousaphone. Hel•i•con Pronunciation: (hel'i-kon", -kun), [key] — n. a mountain in S central Greece. 5738 ft. (1749 m): regarded by ancient Greeks as the abode of Apollo and the Muses. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: helicon (Thesaurus) helicoid helicopt Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language