Bilateral

 bi·lat·er·al  (b-ltr-l)

adj.

1. Having or formed of two sides; two-sided.

2. Affecting or undertaken by two sides equally; binding on both parties: a bilateral agreement; bilateral negotiations.

3. Relating to the right and left sides of the body or of a body structure.

4. Having or marked by bilateral symmetry.

bi·lat·er·al

 [bahy-lat-er-uhl]

–adjective

1.

pertaining to, involving, or affecting two or both sides,factions, parties, or the like: a bilateral agreement; bilateralsponsorship.

2.

located on opposite sides of an axis; two-sided, especiallywhen of equal size, value, etc.