a. [ L. tripartitus; tri- (see Tri-) + partitus, p. p. of partiri to part, to divide. See Part, v. i. ] 1. Divided into three parts; triparted; as, a tripartite leaf. [ 1913 Webster ]
2. Having three corresponding parts or copies; as, to make indentures tripartite. A. Smith. [ 1913 Webster ]
3. Made between three parties; as, a tripartite treaty. [ 1913 Webster ]