A'IR-PUMP, noun A machine for exhausting the air of a vessel. The machines for this purpose are of different constructions.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI
air-pump
Founding-era definition · Webster's 1828 American Dictionary
More founding-era words: liberty · virtue · republic · justice · providence · commerce · militia · arms · prudence · establishment · religion · usurpation · tyranny · citizen · unalienable · sovereign