- noun oil before it is refined and processed into petrol and other products
- adjective in a natural or original state and not treated or improved in any way
- adjective simple and unsophisticated
(written as crude (oil))raw petroleum, taken from the ground
- A natural, hydrocarbon-based liquid resource extracted from beneath the earth's surface and refined for use as vehicle fuel and other petrochemicals that are used in the manufacture of various products. Traded on futures and commodity exchanges.
- crude oil.