/ Dictionary / Index M monomolecular: Meaning and Definition of Find definitions for: mon•o•mo•lec•u•lar Pronunciation: (mon"ō-mu-lek'yu-lur), [key] — adj. noting or pertaining to a thickness of one molecule. having a thickness of one molecule. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. monomial monomorphemic Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language