Source : Webster's Revised Unabridged Dictionary (1913)

Quadripartite \Quad*rip"ar*tite\, a. [L. quadripartitus, p. p.
   of quadripartire to divide into four parts; quattuor four +
   partire to divide: cf. F. quadripartite.]
   Divided into four parts.

Source : WordNet®

quadripartite
     adj : involving four parties [syn: {four-party}]