Describing a form of bonding between large molecules that does not involve discrete bonds betwen pairs of atoms(adjective)
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Use "noncovalent" in a sentence
"The issue is the reappearance of a very stable, noncovalent protein-protein coupling."
"One such possibility is that the initial version did not involve a covalent linkage to an amino acid, but merely noncovalent binding, producing a modest acceleration of peptide bond formation by virtue of positioning the reactants and reducing the entropic barrier to reaction."
"For example, the strength of the electric charge allows both the strong (covalent) and the weak (noncovalent) chemical bonds necessary for proteins to work."