The Collaborative International Dictionary of English v.0.48:

Biography \Bi*og"ra*phy\, n.; pl. Biographies. [Gr. ?; bi`os
   life + ? to write: cf. F. biographie. See Graphic.]
   1. The written history of a person's life.
      [1913 Webster]

   2. Biographical writings in general.
      [1913 Webster] Biologic

WordNet (r) 3.0 (2006):

biography
    n 1: an account of the series of events making up a person's
         life [syn: biography, life, life story, life
         history]