English Lexicon

Efflux

/ˈɛf.lʌks/
nounCEFR C1 (Advanced)Top #15000 frequency
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Comprehensive Definitions & Senses

2 senses
As noun
  1. 1

    The act of flowing out or the process of discharge.

    "The efflux of water from the reservoir was carefully monitored to prevent flooding."
  2. 2

    A substance that flows out, especially in a scientific or technical context.

    "The efflux of gases during the reaction was measured to determine the reaction rate."

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Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

The term 'efflux' originates from the Latin word 'effluxus', meaning 'to flow out', which combines 'ex-' (out) and 'fluere' (to flow). It has been used in English since the late 15th century, primarily in scientific contexts to describe the process of flowing out or the discharge of a substance.

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