antifoulant

noun
an·​ti·​foul·​ant
plural -s

Definition of antifoulant 

: a substance (such as paint for use on the bottom of a boat) designed to prevent, reduce, or eliminate fouling

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First Known Use of antifoulant

1964, in the meaning defined above

History and Etymology for antifoulant

anti- entry 1 + foul entry 4 + -ant entry 1

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The first known use of antifoulant was in 1964

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