bioscope vs movie projector

bioscope and movie projector both are nouns.

Word	Noun	Adjective	Verb	Adverb
bioscope	Yes	No	No	No
movie projector	Yes	No	No	No

As nouns, movie projector is a hypernym of bioscope; that is, movie projector is a word with a broader meaning than bioscope:

bioscope: a kind of early movie projector
movie projector: projects successive frames from a reel of film to create moving pictures

Other hypernyms of bioscope include cine projector, film projector.

bioscope (noun)	movie projector (noun)
a kind of early movie projector	projects successive frames from a reel of film to create moving pictures
a South African movie theater