\A` pos*te`ri*o"ri\ [L. a (ab) + posterior latter.]
1. (Logic) Characterizing that kind of reasoning which
   derives propositions from the observation of facts, or by
   generalizations from facts arrives at principles and
   definitions, or infers causes from effects. This is the
   reverse of a priori reasoning.
2. (Philos.) Applied to knowledge which is based upon or
   derived from facts through induction or experiment;
   inductive or empirical.