proctoscope vs endoscope

proctoscope and endoscope both are nouns.

Word	Noun	Adjective	Verb	Adverb
proctoscope	Yes	No	No	No
endoscope	Yes	No	No	No

As nouns, endoscope is a hypernym of proctoscope; that is, endoscope is a word with a broader meaning than proctoscope:

proctoscope: an endoscope for examining the rectum
endoscope: a long slender medical instrument for examining the interior of a bodily organ or performing minor surgery

proctoscope (noun)	endoscope (noun)
an endoscope for examining the rectum	a long slender medical instrument for examining the interior of a bodily organ or performing minor surgery