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ulcer

noun [C]
 
 
/ˈʌl.sər/ US  /-sɚ/

Definition

a break in the skin or on the surface of an organ inside the body, which does not heal naturally: a mouth/stomach ulcerSkin complaints and blemishes ulcerous
 
 
/-əs/ adjective
Skin complaints and blemishes
(Definition of ulcer noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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