colorimeter vs tintometer

colorimeter and tintometer both are nouns.

Word	Noun	Adjective	Verb	Adverb
colorimeter	Yes	No	No	No
tintometer	Yes	No	No	No

As nouns, colorimeter and tintometer are synonyms defined as:

colorimeter and tintometer: a measuring instrument used in colorimetric analysis to determine the quantity of a substance from the color it yields with specific reagents

colorimeter (noun)	tintometer (noun)
a measuring instrument used in colorimetric analysis to determine the quantity of a substance from the color it yields with specific reagents	a measuring instrument used in colorimetric analysis to determine the quantity of a substance from the color it yields with specific reagents