essential oil Any of a variety of volatile oils produced by many plants, flowers, and fruits, which give them their characteristic odor or flavor. A great number of chemical compounds have been identified from essential oils. They are used commercially for flavoring food and in perfumes; some have medicinal properties. Related categories • BIOCHEMISTRY • ORGANIC CHEMISTRY Also on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History Transport Concepts & Designs (partner site) |