Word: oilproof
Part of speech: Adjective
Syllables: oil
proof
Definition: Resistant to oil.
Morphemes:
Affix: oil
Language: en
PoS: Verb
Meaning: To lubricate with oil.
Affix: -proof
Language: en
PoS: Suffix
Meaning: Used to form adjectives denoting an impervious or impenetrable quality.