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(sur-fac-tant) 3 syllables

Definition

noun. a substance that reduces the surface tension of a liquid, allowing it to spread more easily. surfactants are commonly used in detergents and emulsifiers.

Example Sentence

The surfactant in the soap helps to break down grease and dirt on surfaces.

More Example Sentences

Without a surfactant, the water would bead up instead of spreading out.

Synonyms

detergent; emulsifier; wetting agent

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surfactant
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