atmometer vs measuring system

atmometer and measuring system both are nouns.

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

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

atmometer: an instrument that measures rate of evaporation of water
measuring system: instrument that shows the extent or amount or quantity or degree of something

Other hypernyms of atmometer include measuring device, measuring instrument.

atmometer (noun)	measuring system (noun)
an instrument that measures rate of evaporation of water	instrument that shows the extent or amount or quantity or degree of something