active transport

noun

Definition of active transport

: the movement of a chemical substance by the expenditure of energy against a gradient in concentration or in electrical potential across a plasma membrane — compare passive transport

First Known Use of active transport

1922, in the meaning defined above

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Time Traveler for active transport

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The first known use of active transport was in 1922

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Cite this Entry

“Active transport.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/active%20transport. Accessed 16 Feb. 2020.

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More Definitions for active transport

active transport

noun

Medical Definition of active transport

: movement of a chemical substance by the expenditure of energy against a gradient in concentration or electrical potential across a plasma membrane

More from Merriam-Webster on active transport

Britannica.com: Encyclopedia article about active transport

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