/ Dictionary / Index M magnisonant: Meaning and Definition of Find definitions for: mag•nis•o•nant Pronunciation: (mag-nis'u-nunt), [key] — adj. Archaic. high-sounding. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. magniloquent Magnitogorsk Related Content Daily Word Quiz: sinister Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language