Source : Webster's Revised Unabridged Dictionary (1913)

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

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

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

            To think of a thing is to condition.  --Sir W.
                                                  Hamilton.

Source : WordNet®

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