1. Resistant to penetration by grease or oil or wax
   "greaseproof wrapping paper"

See also: imperviable, impervious

• Owensboro
• owing
• owl
• owlclaws
• owlet
• owlet moth
• owlish
• owlishly
• OWLT
• own
• own goal
• own right
• own up
• owned
• owner
• owner-driver
• owner-occupied
• owner-occupier
• ownerless
• ownership
• ox
• ox-eyed
• ox-eyed daisy
• oxacillin
• oxalacetate