/ Dictionary / Index M modality: Meaning and Definition of Find definitions for: mo•dal•i•ty Pronunciation: (mō-dal'i-tē), [key] — pl. -ties. the quality or state of being modal. an attribute or circumstance that denotes mode or manner. Also calledthe classification of propositions according to whether they are contingently true or false, possible, impossible, or necessary. the application of a therapeutic agent, usually a physical therapeutic agent. one of the primary forms of sensation, as vision or touch. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: modality (Thesaurus) modal auxiliary mode Related Content Daily Word Quiz: fabricate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language