n. [ L. colligatio. ] 1. A binding together. Sir T. Browne. [ 1913 Webster ]

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. [ 1913 Webster ]

Colligation is not always induction, but induction is always colligation. J. S. Mill. [ 1913 Webster ]