Oil  

From The Art and Popular Culture Encyclopedia

Mona Lisa (c. 1503–1519) is an oil painting by Leonardo da Vinci, one of the most famous paintings in the world.

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An oil is any neutral, nonpolar chemical substance that is a viscous liquid at ambient temperatures and is both hydrophobic (immiscible with water, literally "water fearing") and lipophilic (miscible with other oils, literally "fat loving"). Oils have a high carbon and hydrogen content and are usually flammable and slippery.

Crude oil, or petroleum, and its refined components, collectively termed petrochemicals, are crucial resources in the modern economy.

See also

• Oil crisis
• Oil paint
• Essential oil
• Oil war
• Petro-aggression
• Age of Oil