Definition of efflux in US English:

efflux

noun

technical
  • 1The flowing out of a particular substance or particle.

    • ‘The scary aspect of this is that calcium ion efflux occurs at intensities and field strengths that are extremely low.’
    • ‘Later, the efflux of solutes from chloroplasts was measured.’
    • ‘In this study, glucose uptake and efflux from border cells was measured in vitro.’
    • ‘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.’
    leak, leakage, spill, seepage, drip, dribble, discharge, emanation, issue, flow, outflow, outpouring, gush
    View synonyms
    1. 1.1 Material that is flowing out.
      • ‘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.’
      • ‘Diverse mechanisms may be responsible for the development of resistance for Cr in microbes, including chromate efflux 85.’
      • ‘Efflux was then measured in tubes containing an assay layer without added Glc.’
      • ‘It is a feature of the results in Fig.2 that sucrose efflux and K + efflux respond similarly to rises in turgor, including the larger rise at highest turgor seen in P. vulgaris though not always in V. faba.’
      • ‘Together, these findings are consistent with the current being carried by a burst of Cl - efflux through Cl - permeable channels that activate almost simultaneously.’
    2. 1.2
      another term for effluxion (sense 1)

Origin

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

Pronunciation

efflux

/ɛˈfləks//eˈfləks/