Definition of tridentate
1 : having three teeth, processes, or points a tridentate leaf
2 chemistry : attached to the central atom in a coordination complex by three bonds —used of ligands and chelating groups Each cage is built from two different tridentate ligands held together with three platinum or palladium ions. — Chemical & Engineering News, 5 July 1999 — compare bidentate, monodentate, polydentate
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Origin and Etymology of tridentate
New Latin tridentatus, from tri- + -dentatus -dentate
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