Source : Webster's Revised Unabridged Dictionary (1913)

Colligation \Col`li*ga"tion\, n. [L. colligatio.]
   1. A binding together. --Sir T. Browne.

   2. (Logic) That process by which a number of isolated facts
      are brought under one conception, or summed up in a
      general proposition, as when Kepler discovered that the
      various observed positions of the planet Mars were points
      in an ellipse. ``The colligation of facts.'' --Whewell.

            Colligation is not always induction, but induction
            is always colligation.                --J. S. Mill.

Source : WordNet®

colligation
     n 1: the state of being joined together [syn: {junction}, {conjunction},
           {conjugation}]
     2: the connection of isolated facts by a general hypothesis