/ Dictionary / Index C calliopean: Meaning and Definition of Find definitions for: cal•li•o•pe•an Pronunciation: (ku-lī"u-pē'un), [key] — adj. resembling a calliope in sound; piercingly loud: a calliopean voice. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. calliope calliopsis Related Content Daily Word Quiz: lunar Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language