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See more synonyms for efflux on Thesaurus.com
  1. outward flow, as of water.
  2. something that flows out; effluence.
  3. a passing or lapse of time.
  4. a passing away; expiration; ending.
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Also ef·flux·ion [ih-fluhk-shuh n] /ɪˈflʌk ʃən/ (for defs 3, 4).

Origin of efflux

1635–45; < Medieval Latin effluxus, equivalent to Latin ef- ef- + fluc-, variant stem of fluere to flow + -sus, for -tus suffix of v. action
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words

discharge, emanation, effluence

Examples from the Web for efflux

Historical Examples

  • Everything that he did and all that he said were merely the efflux of his high spirits as a schoolboy.

    The Fixed Period

    Anthony Trollope

  • Antoninus says that the soul of man is an efflux from the divinity.

    Thoughts of Marcus Aurelius Antoninus

    Marcus Aurelius Antoninus

  • The fancy shunned them—a problem not to be settled by sudden municipal edicts, but only by the efflux of generations.

    Your United States

    Arnold Bennett

  • Practical maxims are spoken of, as merely probable, Right and Wrong as the efflux of moral sentiments.

  • In general, however, the efflux of water at these inferior openings is surprisingly uniform.

Word Origin and History for efflux


1640s, from Latin effluxus, past participle of effluere (see effluence).

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Online Etymology Dictionary, © 2010 Douglas Harper