/ Dictionary / Index U ulcerative: Meaning and Definition of Find definitions for: ul•cer•a•tive Pronunciation: (ul'su-rā"tiv, -sur-u-tiv), [key] — adj. causing ulceration. of the nature of or characterized by ulceration. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: ulcerative (Thesaurus) ulcerate ulcerative colitis Related Content Daily Word Quiz: cygnet Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language