/ Dictionary / Index M modificatory: Meaning and Definition of Find definitions for: mod•i•fi•ca•to•ry Pronunciation: (mod'u-fi-ku-tôr"ē, -tōr"ē), [key] — adj. modifying. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. modification modified American plan 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