/ Dictionary / Index A ad damnum: Meaning and Definition of Find definitions for: ad dam•num Pronunciation: (ad dam'num), [key] — Law. Law. a formal and specific claim by a plaintiff for damages. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. add Addams Related Content Daily Word Quiz: tactful Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language