umbellulone

\\ˌəmˈbelyəˌlōn\ noun (-s)

Etymology: International Scientific Vocabulary umbellul- (from New Latin Umbellularia, genus of dicotyledonous trees, from umbellula — diminutive of umbella umbel — + -aria + -one

: an unsaturated oily compound C₁₀H₁₄O that is derived from the leaves of California laurel and is a ketonic derivative of thujene