ˈliməˌnēn, ˈlīm- noun
( -s )
Etymology: International Scientific Vocabulary limon- (as in limonin ) + -ene
: a liquid terpene hydrocarbon C 10 H 16 that has an odor like a lemon and exists in a dextrorotatory form occurring in many essential oils (as orange, lemon, or celery-seed oil), in a levorotatory form occurring especially in pine-needle oils, and in the racemic form dipentene; 1,8- para -menthadiene