Definition of efflux in English:

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Pronunciation: /ˈɛflʌks/


[mass noun] technical
1The flowing out of a substance or particle: the same active efflux of sodium from the cytoplasm to the external medium
More example sentences
  • For the first category of compounds, it is the cell wall, together with the outer membrane and associated proteins, which presents a potential barrier to influx and efflux of chemical compounds.
  • The first step in this process is calcium ion efflux from the cells.
  • The scary aspect of this is that calcium ion efflux occurs at intensities and field strengths that are extremely low.
1.1Material that is flowing out: the routing for the jet efflux also needs to be considered
More example sentences
  • Together, these findings are consistent with the current being carried by a burst of Cl - efflux through Cl - permeable channels that activate almost simultaneously.
  • Diverse mechanisms may be responsible for the development of resistance for Cr in microbes, including chromate efflux 85.
  • So, by such a transport inhibition of ketone body efflux from the liver, the brain is deprived of those energetic compounds leading to lower BDH activity.


Mid 16th century: from medieval Latin effluxus, from effluere 'flow out'.

For editors and proofreaders

Line breaks: ef¦flux

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