ulcer
US /ˈʌl.sɚ/
UK /ˈʌl.sɚ/

1.
궤양
an open sore on an external or internal surface of the body, caused by a break in the skin or mucous membrane that fails to heal
:
•
The doctor diagnosed him with a stomach ulcer.
의사는 그에게 위궤양 진단을 내렸다.
•
She had a painful mouth ulcer that made eating difficult.
그녀는 먹기 힘든 고통스러운 구강 궤양이 있었다.