any of three isomeric alcohols, CHOH, with a lilac odor, found in certain volatile oils and used in perfumes
See terpineol in American Heritage Dictionary 4
(tər-pĭnˈē-ôlˌ, -ōlˌ, -ŏlˌ)
noun
Any of three isomeric alcohols, C10H17OH, occurring naturally in the essential oils of certain plants and used as solvents in perfumes, soaps, and medicine.