active transport

/ˈæktɪv ˌtræntsˈpɔrt/
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Other forms: active transports

Definitions of active transport
  1. noun
    transport of a substance (as a protein or drug) across a cell membrane against the concentration gradient; requires an expenditure of energy
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    type of:
    transport
    an exchange of molecules (and their kinetic energy and momentum) across the boundary between adjacent layers of a fluid or across cell membranes
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