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n. An ion, a molecule, or a molecular group that binds to another chemical entity to form a larger complex.

n. An ion, molecule, or functional group that binds to another chemical entity to form a larger complex.

n. a substance (an atom or molecule or radical or ion) that forms a complex around a central atom

"It turns out that a single molybdenum center within a properly designed protective ligand is sufficient."

substance   

coordination compound   

multidentate ligand    backbonding ligand    ligand field theory    bidentate ligand    bridging ligand    monodentate ligand   

ligands    antigen    receptor    peptide    antibody    substrate    T cell    estrogen    mrna    cytokine