The term "organic-metallic ligand" refers to a molecule that contains an organic group and a metallic ion that acts as a binding agent, forming a coordination compound. However, there are several synonyms that can be used to describe this type of molecule. For example, "chelating agent" is a common synonym, as chelators are molecules that bind to metal ions and form complex structures. Additionally, "metal-containing organic compound" is another synonym that can be used, as it describes the presence of both a metallic ion and an organic group in the molecule. Other possible synonyms include "metal-organic complex" and "organometallic compound." Ultimately, the choice of synonym will depend on the specific context and intended meaning of the molecule.