barometer vs statoscope

barometer and statoscope both are nouns.

Word	Noun	Adjective	Verb	Adverb
barometer	Yes	No	No	No
statoscope	Yes	No	No	No

As nouns, statoscope is a hyponym of barometer; that is, statoscope is a word with a more specific, narrower meaning than barometer:

barometer: an instrument that measures atmospheric pressure
statoscope: An instrument that indicates small changes in an aircraft's altitude by recording small variations in atmospheric pressure.

Other hyponyms of barometer include aneroid, aneroid barometer, barograph, mercury barometer, weatherglass.

barometer (noun)	statoscope (noun)
an instrument that measures atmospheric pressure	An instrument that indicates small changes in an aircraft's altitude by recording small variations in atmospheric pressure.