"terpenoid" . "terpenic oil" . . "sesquiterpenes" . "isoprene units" . . . "diterpenoid" . "triterpene" . . "terpenic" . "terpenic essences" . "Natural polyisoprene" . "Terpene" . "Terpenes" . "isoprene rule" . "terpene" . "terpene synthase" . "sesquiterpene" . "terpenes" . "Terpene#Types" . . "monoterpenoid" . . . "tetraterpene" . "Terpene" . "Terpene#Biosynthesis" . "Terpene#Biogenetic isoprene rule" . "Polyterpene" . "monoterpenes" . . "norisoprenoid" . "Isoprene rule" . . "triterpenoid" . . "diterpenes" . "hemiterpenoids" . "monoterpene" . . "diterpene" . "polyterpene" . . "hemiterpene" . . .