calliper vs measuring device

calliper and measuring device both are nouns.

Word	Noun	Adjective	Verb	Adverb
calliper	Yes	No	Yes	No
measuring device	Yes	No	No	No

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

calliper: an instrument for measuring the distance between two points
measuring device: instrument that shows the extent or amount or quantity or degree of something

Other hypernyms of calliper include measuring instrument, measuring system.

calliper (noun)	measuring device (noun)
an instrument for measuring the distance between two points	instrument that shows the extent or amount or quantity or degree of something

calliper (verb)	measuring device (verb)
measure the diameter of something with calipers