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From French aperception (modern Latin apperceptio, used by Gottfried Leibnitz (1646-1716)).



apperception ‎(countable and uncountable, plural apperceptions)

  1. (uncountable, psychology and philosophy, especially Kantianism) The mind's perception of itself as the subject or actor in its own states, unifying past and present experiences; self-consciousness, perception that reflects upon itself.
  2. (uncountable) Psychological or mental perception; recognition.
    • 2009, Adam Roberts, Yellow Blue Tibia:
      For as she smiled I was gifted a glimpse past the apperception of an anonymous spherical quantity of human flesh; and into the individual.
  3. (countable, psychology) The general process or a particular act of mental assimilation of new experience into the totality of one's past experience.

Related termsEdit



  • apperception” in An American Dictionary of the English Language, by Noah Webster, 1828.
  • apperception in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913
  • apperception” in Unabridged, v1.0.1, Lexico Publishing Group, 2006.
  • apperception” in Microsoft's Encarta World English Dictionary, North American Edition (2007)
  • "apperception" in Encyclopedia Britannica, 1911 ed.
  • Oxford English Dictionary, second edition (1989)
  • Random House Webster's Unabridged Electronic Dictionary (1987-1996)
  • Dictionary of Philosophy, Dagobert D. Runes (ed.), Philosophical Library, 1962. See: "Apperception" by Otto F. Kkraushaar, p. 15.