| Subject | English | Italian |
| chem. | complexing agent | agente sequestrante |
| gen. | complexing agent | complessante |
| environ. | complexing agent A substance capable of forming a complex compound with another material in solution | agente complessante |
| chem. | complexing agent | agente complessante |
| chem. | organic complexing agent | agente di complessazione organico |
| chem. | selective complexing agent | complessante selettivo |