bipartite
1. [ adjective ] (botany) divided into two portions almost to the base
Related terms: compound
2. [ adjective ] involving two parties or elements
Synonyms: two-way two-party
Examples:

"a bipartite document" "a two-way treaty"

Related terms: bilateral
3. [ adjective ] involving two parties or elements
Synonyms: two-way two-party
Examples:

"a bipartite agreement" "a two-way treaty"

Related terms: bilateral
Similar spelling:   bipartizan
  bipartisan
  bivariate