Noun
A kind of pump for exhausting air from a vessel or closed space; also, a pump to condense air or force it into a closed space.
A pump used to exhaust from a condenser the condensed steam, the water used for condensing, and any commingled air.
Source: Webster's dictionaryair-pump
Madness blew so violently on the immeasurable air pump of the circuit, that it took the form of a spiral, rising like a screw to the Zenith.. [describing the Brescia automobile races, in 1907]. Filippo Tommaso Marinetti
An account of Boyle's work with the air pump was published in 1660 under the title New Experiments Physico-Mechanicall, Touching the Spring of the Air, and its Effects. Source: Internet
After a quick stop at a gas station air pump, the warnings abated, but it looks like this wasn’t a permanent solution. Source: Internet
The air pump, which in the 17th century was a complicated and expensive apparatus to build, also led to one of the first documented disputes over the reproducibility of a particular scientific phenomenon. Source: Internet
Huygens reported an effect he termed "anomalous suspension", in which water appeared to levitate in a glass jar inside his air pump (in fact suspended over an air bubble), but Boyle and Hooke could not replicate this phenomenon in their own pumps. Source: Internet
Robert Hooke also helped Boyle produce an air pump which helped to produce the vacuum. Source: Internet