Crude oil
Crude Oil
Crude oil, also known as petroleum (Latin: petra, "rock" + oleum, "oil"), is a naturally occurring, unrefined petroleum product composed of hydrocarbon deposits and other organic materials.
Pronunciation
- IPA: /kruːd ɔɪl/
Etymology
The term "crude oil" is derived from the fact that it is a raw, unrefined substance. The word "crude" comes from the Latin crudus meaning "raw" or "uncooked", while "oil" is from the Old English oile, from Latin oleum meaning "oil".
Description
Crude oil is a fossil fuel, meaning it was made naturally from decaying plants and animals living in ancient seas millions of years ago. It is a nonrenewable resource, which means that it can't be replaced naturally at the rate we consume it and is therefore a limited resource.
Related Terms
- Hydrocarbon: An organic compound consisting entirely of hydrogen and carbon. Crude oil is primarily composed of hydrocarbons.
- Fossil fuel: A natural fuel such as coal or gas, formed in the geological past from the remains of living organisms. Crude oil is a type of fossil fuel.
- Petroleum: Another term for crude oil.
- Nonrenewable resource: A resource of economic value that cannot be readily replaced by natural means on a level equal to its consumption.
See Also
External links
- Medical encyclopedia article on Crude oil
- Wikipedia's article - Crude oil
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