polarimeter vs polariscope

polarimeter and polariscope both are nouns.

Word	Noun	Adjective	Verb	Adverb
polarimeter	Yes	No	No	No
polariscope	Yes	No	No	No

As nouns, polarimeter and polariscope are synonyms defined as:

polarimeter and polariscope: an optical device used to measure the rotation of the plane of vibration of polarized light

polarimeter (noun)	polariscope (noun)
an optical device used to measure the rotation of the plane of vibration of polarized light	an optical device used to measure the rotation of the plane of vibration of polarized light