/ Dictionary / Index M monoclonality: Meaning and Definition of Find definitions for: mon•o•clo•nal•i•ty Pronunciation: (mon"u-klō-nal'i-tē), [key] — n. the state or condition of having one specific type of antibody. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. monoclonal antibody monocoque Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language