bimolecular

/B IH1 M AH0 L EH1 K Y AH0 L ER0/
adjective
  1. 1

    (of a reaction) involving two molecules

  2. 2

    Consisting of two layers of molecules

  3. 3

    Relating to bimolecules

Source: https://en.wiktionary.org/wiki/bimolecular