1) Endoscope 
Culdoscope is an instrument, a kind of endoscope, used to visualize female pelvic organs, introduced through the vagina into the cul-de-sac (which is also called the rectouterine pouch or the pouch of Douglas). The procedure of inserting the culdoscope into the rectouterine pouch is termed culdoscopy. The word culdoscope (and culdoscopy) is derive...
<instrument> Endoscopic instrument used in culdoscopy. ... (05 Mar 2000) ... 
(kul´do-skōp) an endoscope used in culdoscopy.
Type: Term Pronunciation: kŭl′dō-skōp Definitions: 1. Endoscopic instrument used in culdoscopy.
Culdoscope: The viewing tube (endoscope) introduced through the end of the vagina into the cul-de-sac. The cul-de-sac is also called the rectouterine pouch (the pouch of Douglas), an extension of the peritoneal cavity between the rectum and back wall of the uterus. This procedure is termed culdoscopy. The word 'culdoscope' (and 'culdoscopy') is der...
An instrument that is inserted into the vagina for viewing the female pelvic organs. The instrument is long and slender.
[n] - a specialized endoscope for visually examining a woman`s pelvic organs
noun a specialized endoscope for visually examining a woman`s pelvic organs