noun Date: circa 1900 an endoscope designed to be passed through the anus for visual examination especially of the sigmoid colon, sigmoidoscopic adjective sigmoidoscopy noun
SIGMOIDOSCOPE
Meaning of SIGMOIDOSCOPE in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012