fixed oil

noun

Chemistry.

1. a natural vegetable or animal oil that is nonvolatile, as lard oil, linseed oil, etc.

fixed oil

noun

1. Also called: fatty oil. a natural animal or vegetable oil that is not volatile: a mixture of esters of fatty acids, usually triglycerides Compare essential oil

Word History and Origins

Origin of fixed oil¹

First recorded in 1790–1800