Correct

溃疡

/ kuìyáng / 
Strokes

Definition

ulcer/to ulcerate

Example

As a Noun

ulcer; canker

1
Wèikuìyáng
胃溃疡

gastric ulcer

2
Shíèrzhǐcháng
十二指肠
kuìyáng
溃疡

duodenal ulcer

3
Kǒuqiāngkuìyáng
口腔溃疡

oral ulcer/canker