proctosigmoidoscopyWiktionary 原文英美构词拆解proctoprocto-前缀sigmoidoscopysigmoidoscopy词干procto-Dealing with the rectum and anus; anorectal; sometimes also the distal colon.词源说明From procto- + sigmoidoscopy.释义名词noun1(medicine) An endoscopic examination of the rectum and sigmoid colon using a flexible or rigid scope.同族词派生词 1proctosigmoidoscopic相关词 1proctosigmoidoscope