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cosurfactant

noun co·sur·fac·tant \ (ˌ)kō-(ˌ)sər-ˈfak-tənt , (ˌ)kō-ˈsər-ˌfak-tənt \
variants: or co-surfactant

Definition of cosurfactant

plural cosurfactants or co-surfactants
: a chemical substance that is used in addition to a surfactant to improve its performance; especially : a second surfactant that is used in conjunction with a primary surfactant

First Known Use of cosurfactant

1970

in the meaning defined above

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