The Collaborative International Dictionary of English v.0.48:

Condition \Con*di"tion\, v. i. [imp. & p. p. Conditioned; p.
   pr. & vb. n. Conditioning.]
   1. To make terms; to stipulate.
      [1913 Webster]

            Pay me back my credit,
            And I'll condition with ye.           --Beau. & Fl.
      [1913 Webster]

   2. (Metaph.) To impose upon an object those relations or
      conditions without which knowledge and thought are alleged
      to be impossible.
      [1913 Webster]

            To think of a thing is to condition.  --Sir W.
                                                  Hamilton.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

conditioning \conditioning\ n.
   a learning process in which an organism's behavior becomes
   dependent on the occurrence of a stimulus in its environment.
   See conditioned response.
   [WordNet 1.5]

WordNet (r) 3.0 (2006):

conditioning
    n 1: a learning process in which an organism's behavior becomes
         dependent on the occurrence of a stimulus in its
         environment