greaseproof
grease |proof |ˈgriːspruːf | ▶adjective Brit. (especially of paper used in cooking ) impermeable to oil or grease.
gr é ase pr ò of 形容詞 耐油性の [油を通さない ]〈紙 〉 〘料理や食品包装に使う 〙(⦅米 ⦆waxed ).