procidentia
noun [ U ] medical specialized uk/prəʊ.sɪˈden.tʃə/ us/ˌproʊ.səˈden.tʃə/
(拉丁语,用于医学术语)脱垂
a Latin word meaning "prolapse" (= a condition in which an organ has moved down out of its usual position), used in medical names and descriptions