Wordnet 3.0
NOUN (1)
1.
the process whereby perceived qualities of an object are related to past experience;
The Collaborative International Dictionary of English v.0.48:
Apperception \Ap`per*cep"tion\, n. [Pref. ad- + perception: cf.
F. apperception.] (Metaph.)
The mind's perception of itself as the subject or actor in
its own states; perception that reflects upon itself;
sometimes, intensified or energetic perception. --Leibnitz.
Reid.
[1913 Webster]
This feeling has been called by philosophers the
apperception or consciousness of our own existence.
--Sir W.
Hamilton.
[1913 Webster]
WordNet (r) 3.0 (2006):
apperception
n 1: the process whereby perceived qualities of an object are
related to past experience