ulcer
US /ˈʌl.sɚ/
UK /ˈʌl.sɚ/

1.
ulkus, bisul
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.
Dokter mendiagnosisnya dengan ulkus lambung.
•
She had a painful mouth ulcer that made eating difficult.
Dia memiliki ulkus mulut yang menyakitkan yang membuat makan sulit.