From Longman Dictionary of Contemporary Englishgreaseproof papergrease‧proof pa‧per /ˌɡriːs-pruːf ˈpeɪpə $ -ər/ noun [uncountable] British EnglishDFC a kind of paper that butter, grease etc cannot pass through, used in cooking and for wrapping food SYN waxed paper American English
Examples from the Corpus
greaseproof paper• Strain into a bowl, cover the surface of the custard with damp greaseproof paper.• Cool completely then, leaving greaseproof paper in place, renew foil, wrapping tightly.• Packaging materials consisted mainly of greaseproof paper and brown paper bags.• Turn on to sheet of greaseproof paper sprinkled with icing sugar.• Cover with a piece of pleated greaseproof paper and foil, and secure with string.• Carefully remove greaseproof paper and place cake on serving plate.• There were boxes in the corner containing brand new gear still wrapped in stiff greaseproof paper and not yet assembled for use.• Cover with the greaseproof paper, then with foil and tie with string. 