Demulcent :: Demulcent (n.) A substance, usually of a mucilaginous or oily nature, supposed to be capable of soothing an inflamed nervous membrane, or protecting it from irritation. Gum Arabic, glycerin, olive oil, etc., are demulcents..
Exulceration :: Exulceration (n.) A fretting; a festering; soreness.
Exulcerative :: Exulcerative (a.) Tending to cause ulcers; exulceratory.
Exulceratory :: Exulceratory (a.) Having a tendency to form ulcers; rendering ulcerous.
Ulcer :: 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..
Ulcer :: Ulcer (n.) Fig.: Anything that festers and corrupts like an open sore; a vice in character.