/ Dictionary / Index R rodent ulcer: Meaning and Definition of Find definitions for: ro'dent ul"cer Pronunciation: [key] — Pathol. Pathol. an ulcerating basal cell skin cancer, common on the face. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. rodenticide rodeo Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language