Definition of proctosigmoidoscopy in English:
proctosigmoidoscopy
Pronunciation /ˌprɒktə(ʊ)sɪɡmɔɪˈdɒskəpi/
noun
Medicine Surgery
Visual examination of the rectum and sigmoid colon; use of a proctosigmoidoscope; an instance of this.
Origin
1930s; earliest use found in American Journal of Surgery.