cineole

[sin-ee-ohl]

noun Chemistry, Pharmacology.

a colorless, oily, slightly water-soluble liquid terpene ether, C10H18O, having a camphorlike odor and a pungent, spicy, cooling taste, found in eucalyptus, cajeput, and other essential oils: used in flavoring, perfumery, and medicine chiefly as an expectorant.

Also cin·e·ol

[sin-ee-awl, -ol] /ˈsɪn iˌɔl, -ˌɒl/.

Origin of cineole

alteration of New Latin oleum cinae, equivalent to oleum oil + genitive singular of cina wormseed

Also called cajeputol, cajuputol, eucalyptol.