1. complexChemistry
Wikipedia definition
2. Coordination complexIn chemistry, a coordination complex or metal complex, is an atom or ion (usually metallic), bonded to a surrounding array of molecules or anions, that are in turn known as ligands or complexing agents. Many metal-containing compounds consist of coordination complexes.
Read “Coordination complex” on English Wikipedia
Read “錯体” on Japanese Wikipedia
Read “Coordination complex” on DBpedia


to talk about this word.