echograph vs measuring device

echograph and measuring device both are nouns.

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

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

echograph: An instrument used to record an echogram.
measuring device: instrument that shows the extent or amount or quantity or degree of something

Other hypernyms of echograph include measuring instrument, measuring system.

echograph (noun)	measuring device (noun)
An instrument used to record an echogram.	instrument that shows the extent or amount or quantity or degree of something