Medical Dictionary
1ulcer
noun ul·cer \ˈəl-sər\
Medical Definition of ULCER
: a break in skin or mucous membrane with loss of surface tissue, disintegration and necrosis of epithelial tissue, and often pus <a stomach ulcer>
Seen & Heard
What made you want to look up ulcer? Please tell us where you read or heard it (including the quote, if possible).