ulcer
US /ˈʌl.sɚ/
UK /ˈʌl.sɚ/

1.
ulser
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.
Doktor mendiagnosisnya dengan ulser perut.
•
She had a painful mouth ulcer that made eating difficult.
Dia mempunyai ulser mulut yang menyakitkan yang menyukarkan makan.