crude oil
nounUK /kruːd ɔɪl/
US /kruːd ɔɪl/
Thick, dark oil that comes from deep under the ground and is used to make fuel.
Trucks carry crude oil from the wells to the factory.
OTHER MEANINGS
2. Oil that has not been cleaned or processed yet.
The crude oil must be refined before it can be used.
3. A natural liquid found underground that people use to make many products.
Plastic is made from crude oil.
4. Unrefined petroleum used as a raw material in industry.
The price of crude oil went up last month.