antifog

adjective
an·​ti·​fog | \ˌan-ˌtī-ˈfȯg, ˌan-tē-\
variants: or antifogging \ˌan-​ˌtī-​ˈfȯ-​giŋ, ˌan-​tē-​ \

Definition of antifog 

: preventing or inhibiting the buildup of condensation on a surface (such as a lens or window) lenses with an antifog coating an antifogging surface

First Known Use of antifog

1919, in the meaning defined above

History and Etymology for antifog

anti- + fog entry 1 or fogging, present participle of fog entry 2

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The first known use of antifog was in 1919

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