词根词缀：sigmoido-, sigmo-

【来源及含义】Greek: sigmoeides, shaped like the letter sigma; pertaining to the sigmoid flexure, the S-shaped bend in the colon; a combining form that usually denotes the sigmoid colon

【同源单词】anosigmoidoscopy, dolichosigmoid, proctosigmoidectomy, proctosigmoiditis, proctosigmoidoscope, proctosigmoidoscopy