- (n.) A solution of continuity in any of the soft parts of the body, discharging purulent matter, found on a surface, especially one of the natural surfaces of the body, and originating generally in a constitutional disorder; a sore discharging pus. It is distinguished from an abscess, which has its beginning, at least, in the depth of the tissues.
- (v.t.) To ulcerate.
- (n.) Fig.: Anything that festers and corrupts like an open sore; a vice in character.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). ulcer. Retrieved September 21, 2026, from http://smartdefine.org/ulcer/definitions/2076023 |
| Chicago | Webster's. 2011. "ulcer" http://smartdefine.org/ulcer/definitions/2076023 (accessed September 21, 2026). |
| Harvard | Webster's 2011, ulcer, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/ulcer/definitions/2076023>. |
| MLA | Webster's. "ulcer" 28 May 2011. Web. 21 September 2026. <http://smartdefine.org/ulcer/definitions/2076023> |