What is Bipartite?

Legal Definition
Of two parts. This term is used in conveyancing as, this indenture bipartite, between A, of the one part, and B, of the other part. But when there are only two parties, it is not necessary to use this word.
-- Bouviers Law Dictionary
Legal Definition
Consisting of or divisible into, two parts. A term in cenveyancing descriptive of an instrument in two parts, and executed by both parties.
-- Black's Law Dictionary
Legal Definition
In two parts; in duplicate.
-- Ballentine's Law Dictionary