An organic compound that contains double or triple carbon-to-carbon bonds, and can theoretically bind to additional hydrogen atoms. CH2=CH-CH2-CH3 1-Butene

A unsaturated compound in chemistry is a chemical compound that contains carbon - carbon pi bonds such as an alkene or an alkyne.

Unsaturated compound is a chemical term. It is used in Organic chemistry to describe a compound, particularly carbon chains, which has one or more double bonds. It is in this sense that unsaturated is used to describe dietary fats.