Baroscope n. : Any instrument showing the changes in the weight of the atmosphere; also, less appropriately, any instrument that indicates -or foreshadows changes of the weather, as a deep vial of liquid holding in suspension some substance which rises and falls with atmospheric changes.

Example:
what was the instrument used to determine that the sun was in the center of the solar system or w/e?

Taxonomy
barometer, atmospheric pressure, mercury barometer, aneroid barometer, dictionary, instrument, Encyclopedia, altitude, pressure, thesaurus, glass tube, measure, measuring atmospheric pressure, mercurial barometer, Free Online Encyclopedia, air pressure, Evangelista Torricelli, cistern.

Defination from the web:
Baroscope. Information about Baroscope in the Columbia Encyclopedia, Computer Desktop Encyclopedia, computing dictionary. ... (redirected from Baroscope) Also found in: Dictionary/thesaurus, Medical, Financial, Wikipedia, Hutchinson. 0.38 sec. ...