Intramolecular :: Intramolecular (a.) Between molecules; situated, or acting, between the molecules of bodies..
Molecular :: Molecular (a.) Pertaining to, connected with, produced by, or consisting of, molecules; as, molecular forces; molecular groups of atoms, etc..
Molecularity :: Molecularity (n.) The state of consisting of molecules; the state or quality of being molecular.
Molecularly :: Molecularly (adv.) With molecules; in the manner of molecules.