rustproof

== English == === Etymology === From rust + -proof. === Adjective === rustproof (comparative more rustproof, superlative most rustproof) Resistant to rust, oxidation and corrosion. Synonyms: nonrusting, stainless Resistant to the rust fungus. ==== Usage notes ==== See stainless steel § Usage notes. ==== Derived terms ==== ==== Translations ==== === Verb === rustproof (third-person singular simple present rustproofs, present participle rustproofing, simple past and past participle rustproofed) To make resistant to rust, such as by applying a coating.