oilproof

English

Etymology

oil +‎ -proof

Adjective

oilproof (comparative more oilproof, superlative most oilproof)

1. Resistant to oil.

Verb

oilproof (third-person singular simple present oilproofs, present participle oilproofing, simple past and past participle oilproofed)

1. (transitive) To make resistant to oil.