/ Dictionary / Index A amphotericin: Meaning and Definition of Find definitions for: am•pho•ter•i•cin Pronunciation: (am"fu-ter'u-sin), [key] — n. Pharm. an amphoteric antibiotic produced by the bacterium Streptomyces nodosus and used in the treatment of fungal infections. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: amphotericin (Thesaurus) amphoteric amp-hr Related Content Daily Word Quiz: nonchalant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language