xylometer vs measuring system

xylometer and measuring system both are nouns.

Word	Noun	Adjective	Verb	Adverb
xylometer	Yes	No	No	No
measuring system	Yes	No	No	No

As nouns, measuring system is a hypernym of xylometer; that is, measuring system is a word with a broader meaning than xylometer:

xylometer: an instrument used to determine the specific gravity of wood
measuring system: instrument that shows the extent or amount or quantity or degree of something

Other hypernyms of xylometer include measuring device, measuring instrument.

xylometer (noun)	measuring system (noun)
an instrument used to determine the specific gravity of wood	instrument that shows the extent or amount or quantity or degree of something