(especially, uncountable) 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.
(uncountable) Psychological or mental perception; recognition.
(countable) The general process or a particular act of mental assimilation of new experience into the totality of one's past experience.
Pronounced as (IPA)
/ˌæpəˈsɛpʃən/
Etymology
Borrowed from French aperception (New Latin apperceptiō, used by Gottfried Leibnitz (1646–1716)).