Langimage
English

surfactant

|sur-fac-tant|

C1

🇺🇸

/sərˈfæktənt/

🇬🇧

/sɜːˈfæktənt/

surface tension reducer

Etymology
Etymology Information

'surfactant' originates from the combination of 'surface active agent', where 'surface' refers to the outermost layer, and 'active' implies the ability to cause change.

Historical Evolution

The term 'surfactant' was coined in the 20th century as a blend of 'surface' and 'active agent'.

Meaning Changes

Initially, it referred to any agent that affects surface tension, and this meaning has remained consistent.

Meanings by Part of Speech

Noun 1

a substance that reduces the surface tension of a liquid in which it is dissolved, allowing it to spread more easily.

Surfactants are used in detergents to help remove dirt and grease.

Synonyms

Last updated: 2025/07/12 21:23