The Collaborative International Dictionary of English v.0.48:

Bipartite \Bip"ar*tite\, a. [L. bipartitus, p. p. of bipartire;
   bis twice + partire. See Partite.]
   1. Being in two parts; having two correspondent parts, as a
      legal contract or writing, one for each party; shared by
      two; as, a bipartite treaty.
      [1913 Webster]

   2. Divided into two parts almost to the base, as a leaf;
      consisting of two parts or subdivisions. --Gray.
      [1913 Webster]

WordNet (r) 3.0 (2006):

bipartite
    adj 1: divided into two portions almost to the base
    2: involving two parts or elements; "a bipartite document"; "a
       two-way treaty" [syn: bipartite, two-part, two-way]