The Collaborative International Dictionary of English v.0.48:

Forensic \Fo*ren"sic\, a. [L. forensis, fr. forum a public
   place, market place. See Forum.]
   Belonging to courts of judicature or to public discussion and
   debate; used in legal proceedings, or in public discussions;
   argumentative; rhetorical; as, forensic eloquence or
   disputes.
   [1913 Webster]

   Forensic medicine, medical jurisprudence; medicine in its
      relations to law.
      [1913 Webster]

WordNet (r) 3.0 (2006):

forensic medicine
    n 1: the branch of medical science that uses medical knowledge
         for legal purposes; "forensic pathology provided the
         evidence that convicted the murderer" [syn: forensic
         medicine, forensic pathology]