| Subject | English | Portuguese |
| chem. | ampholytic surface active agent | agente tensioativo anfólito |
| chem. | cationic surface active agent | agente tensioativo catiónico |
| chem. | surface active agent | agente tensioativo |
| chem. | surface active agent | tensioactivo |
| chem. | surface active agent | produto tensioactivo |
| chem. | surface active agent | aditivo detersivo |
| chem. | surface active agent | agente de humedecimento |
| environ. | surface active compound | compostos surfactantes |
| environ. | surface active compound Any soluble substance composed of two or more unlike atoms held together by chemical bonds that reduces interfacial tension between liquids or a liquid and a solid, often used as detergents, wetting agents and emulsifiers | compostos surfactantes |
| chem. | surface active detergent | detergente tensioativo |