The Collaborative International Dictionary of English v.0.48:

Jurisprudence \Ju`ris*pru"dence\, n. [L. jurisprudentia; jus,
   juris, right, law + prudentia a foreseeing, knowledge of a
   matter, prudence: cf. F. jurisprudence. See Just, a., and
   Prudence.]
   The science of juridical law; the knowledge of the laws,
   customs, and rights of men in a state or community, necessary
   for the due administration of justice.
   [1913 Webster]

         The talents of Abelard were not confined to theology,
         jurisprudence, philosophy.               --J. Warton.
   [1913 Webster]

   Medical jurisprudence, that branch of juridical law which
      concerns questions of medicine.
      [1913 Webster]

WordNet (r) 3.0 (2006):

jurisprudence
    n 1: the branch of philosophy concerned with the law and the
         principles that lead courts to make the decisions they do
         [syn: jurisprudence, law, legal philosophy]
    2: the collection of rules imposed by authority; "civilization
       presupposes respect for the law"; "the great problem for
       jurisprudence to allow freedom while enforcing order" [syn:
       law, jurisprudence]