D defs.my
Entry 1 sense Webster, 1913

bimolecular

· bi·mo·lec·u·lar · IPA
01 a. Pertaining to, involving, or formed from, two molecules; as, a bimolecular reaction (a reaction between two molecules).
  1. 1.
    Pertaining to, involving, or formed from, two molecules; as, a bimolecular reaction (a reaction between two molecules).(Chem.)