Topic summary
Oils
Extracted from the Wikipedia article Oil.
Plant and animal oils
Diverse oils are produced by plants, animals, and other organisms. Lipid is the scientific term for the fats, steroids, and phospholipids that are soluble in organic solvents. Another large class of plant oils are tall oils, mixtures of fats and rosins that are extracted from trees and used mainly as solvent and fuel. In addition to modern animal-derived oils (e.g. tallow), whale oil was once widely used.