ef·​flux | \ ˈe-ˌfləks How to pronounce efflux (audio) \

Definition of efflux

1 : something given off in or as if in a stream
b : a passing away : expiration

Other Words from efflux

effluxion \ e-​ˈflək-​shən How to pronounce efflux (audio) \ noun

Examples of efflux in a Sentence

Recent Examples on the Web The virus Chan selected latches on to what is known as an efflux pump on the bacterial cell wall. Charles Schmidt, Scientific American, 1 Nov. 2019 Zwicker discovered that this chemical influx and efflux will exactly counterbalance each other when an active droplet reaches a certain volume, causing the droplet to stop growing. Quanta Magazine, 19 Jan. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'efflux.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of efflux

1647, in the meaning defined at sense 1

History and Etymology for efflux

Medieval Latin effluxus, from effluere

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Cite this Entry

“Efflux.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/efflux. Accessed 19 Aug. 2022.

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More Definitions for efflux


ef·​flux | \ ˈef-ˌləks How to pronounce efflux (audio) \

Medical Definition of efflux

1 : something that is given off in or as if in a stream the red-blood-cell sodium ion efflux
2 : the action or process of flowing or seeming to flow out the uptake and efflux of sodium ions

More from Merriam-Webster on efflux

Britannica English: Translation of efflux for Arabic Speakers


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