/ Dictionary / Index V valinomycin: Meaning and Definition of Find definitions for: val•in•o•my•cin Pronunciation: (val"u-nō-mī'sin), [key] — n. Pharm. a cyclic, peptide antibiotic, CHNO, produced by the bacterium Streptomyces fulvissimus; used experimentally to transport potassium across membranes. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. valine valise 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