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Free English Dictionary
Definition of Ulcer
- [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.
- [n.] - Fig.: Anything that festers and corrupts like an open sore; a vice in character.
- [v. t.] - To ulcerate.