[ 'prɒktəskəʊp ]
■ noun a medical instrument for examining the anus and lower rectum.
Derivatives
proctoscopy noun
Origin
C19: from Gk prōktos 'anus' + -scope .
PROCTOSCOPE
Meaning of PROCTOSCOPE in English
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004