piezometer vs measuring system

piezometer and measuring system both are nouns.

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

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

piezometer: a measuring instrument for measuring high pressures
measuring system: instrument that shows the extent or amount or quantity or degree of something

Other hypernyms of piezometer include measuring device, measuring instrument.

piezometer (noun)	measuring system (noun)
a measuring instrument for measuring high pressures	instrument that shows the extent or amount or quantity or degree of something