surface active

/ˈsɜːrfɪs ˈæktɪv/
adjective
  1. Describing a substance that reduces the surface tension of a liquid, allowing it to spread or mix more easily.
    • Soap contains surface-active agents that help remove grease.
    • Surface-active chemicals are used in detergents to improve cleaning.
    • Some surface-active compounds are added to paint to help it spread evenly.
Synonyms