Bible Dictionaries
Baroscope

Webster's Dictionary

(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.

Bibliography Information
Webster, Noah. Entry for 'Baroscope'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​b/baroscope.html. 1828.