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Toepler pump
noun
Toep·ler pump
\ˈteplə(r)-\
Definition of Toepler pump
: a gas pump that is used to produce vacuums or to transfer gases from one part of a system to another and that operates by the alternate lowering and raising of a column of mercury with the consequent alternate production of a vacuum in one tube and the exhausting of the gas through another
From the M-W Editors
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Origin and Etymology of toepler pump
after August J.I. Toepler †1912 German physicist, its inventor
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