non-covalent interactions

in biomolecules
https://doi.org/10.1351/goldbook.09875

Interactions between biomolecules or within a biomolecule (e.g. hydrogen bonds, electrostatic interactions, and van der Waals forces) taking part in the stabilization of proper biomolecule structure and intermolecular interactions.

Source:
PAC, 2018, 90, 1121. (Terminology of bioanalytical methods (IUPAC Recommendations 2018)) on page 1185 [Terms] [Paper]