PUMP definition and meaning | Collins English Dictionary
https://www.collinsdictionary.com/dictionary/english/pump
WEBApr 7, 2024 · 1. any device for compressing, driving, raising, or reducing the pressure of a fluid, esp by means of a piston or set of rotating impellers. 2. biology. a mechanism for the active transport of ions, such as protons, calcium ions, and sodium ions, across cell membranes. a sodium pump. 3. See under the pump. verb.
DA: 71 PA: 63 MOZ Rank: 3