silˈveˌstrēn noun
( -s )
Etymology: International Scientific Vocabulary sylvestr- (from New Latin sylvestris — specific epithet of Pinus sylvestris, the species of pine from which it is derived — , from Latin, sylvan) + -ene
: a liquid terpene hydrocarbon C 10 H 16 or mixture of two isomeric terpenes occurring in dextrorotatory, levorotatory, and inactive racemic forms and obtained as the dihydrochloride of the dextrorotatory form by treating either of the carenes or oil fractions containing them with hydrogen chloride; 1,8- or 6,8- meta -menthadiene