chan·cre
noun/ˈʃæŋkə(r)/
/ˈʃæŋkər/
(medical)- an area with an infection on the body that is not painful, especially one on the outer sex organs, caused by disease
身体上感染不痛的区域，尤指外性器官，由疾病原发引起 Word Originlate 16th cent.: from French, from Latin cancer ‘creeping ulcer’.