Surfactant
Pronunciation: /sərˈfæktənt/
Surfactant (noun)
- A chemical that helps water spread and remove dirt by lowering the surface tension of liquids.
- A substance that lets oil and water mix more easily, forming small particles that carry away grease.
Examples
- A surfactant helps remove grease from surfaces.
- Soap contains a surfactant that lifts dirt away.