pap·il·lo·ma
noun/ˌpæpɪˈləʊmə/
/ˌpæpɪˈləʊmə/
(medical)- a small part like a wart that grows on the skin and is not usually harmful
乳头状瘤（通常为良性） Word Originmid 19th cent.: from papilla (from Latin, literally ‘nipple’, diminutive of papula ‘small protuberance’) + -oma.