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    pump
    /pʌmp/

    noun

    • 1. a mechanical device using suction or pressure to raise or move liquids, compress gases, or force air into inflatable objects such as tyres: "a petrol pump"
    • 2. an active transport mechanism in living cells by which specific ions are moved through the cell membrane against a concentration gradient: "the bacterium's sodium pump"

    verb

    • 1. force (liquid, gas, etc.) to move by or as if by means of a pump: "the blood is pumped around the body" Similar forcedrivepushsend
    • 2. draw (milk) from the breast using a breast pump, typically in order to feed a baby by means of a bottle: "she struggled with pumping enough milk"

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