• synonyms


  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

Examples from the Web for effluxion

Historical Examples

  • Very little history, too, relating to this interesting period has survived the effluxion of time.


    Clive Holland

  • So we must call this constant and intended act of Nature, a slip or effluxion .

  • The council is elected for three years and is not subject to dissolution save by effluxion of time.

  • Modern Folkestone is already, by effluxion of time, becoming sharply divided into modern and more modern.

    The Ingoldsby Country

    Charles G. (Charles George) Harper

  • To reproduce the names of his horses now would not be worth while, as from the effluxion of time the interest in them has ceased.

    The Greville Memoirs

    Charles C. F. Greville

Word Origin and History for effluxion



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

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Online Etymology Dictionary, © 2010 Douglas Harper