ligand
noun [ C ] specialized uk/ˈlɪɡ.ənd/ us/ˈlɪɡ.ənd/
chemistry 配位体
an ion (= an atom or small group of atoms that has an electrical charge) or a molecule (= the simplest unit of a chemical substance) that is attached to a metal atom
biology 配体
a molecule (= the simplest unit of a chemical substance) that is attached to another molecule