From Longman Dictionary of Contemporary Englishoilyoil‧y /ˈɔɪli/ adjective 1 DTcovered with oil He wiped his hands on an oily rag.2 LIQUIDsimilar to oil an oily liquid3 oily hair or skin contains more natural oil than is usual or desirable SYN greasy a shampoo for oily hair4 oily food contains a lot of oil or fat oily fish5 POLITEsomeone who is oily is very polite, in a way that other people think is unpleasant and not sincere —oiliness noun [uncountable]
Examples from the Corpus
oily• Pots and tin trays were clanging over the whirr of dishwashers; the tables smelled sweet and oily.• Start off by cleaning down all the oily and greasy bits - the engine compartment, undercarriage and control surface hinges.• Boardwalk card shows for the benefit of oily collectors?• They pack a high volume crunch and are just oily enough to tempt finger licking.• Examples of foods that contain beneficial fats are oily fish such as salmon, tuna and mackerel.• They are difficult to remove and need an oily remover which may puff-up sensitive eyes.• oily skin• Aqua has been specially designed for oily skins.• an oily used-car salesman 