Answer: terpenic

AnswerCrossword Clue
terpenicpertaining to terpene (a chemical compound)
terpenic(originally) any of a class of monocyclic hydrocarbons of the formula C10H16, obtained from plants
terpenicthis class or any of its oxygenated derivatives, any hydrocarbon from the same source having the formula C5H8(hemiterpene), the formula C10H16 with an aliphatic structure (acyclic terpene) or two-ringed structur