/ Dictionary / Index M monobasic sodium phosphate: Meaning and Definition of Find definitions for: monoba'sic so'dium phos'phate Pronunciation: [key] See(def. 1). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. monobasic potassium phosphate monobath Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language