methylheptenone

[ meth-uh l-hep-tuh-nohn ]
/ ˌmɛθ əlˈhɛp təˌnoʊn /

noun Chemistry.

a colorless liquid, C8H14O, occurring in many essential oils and produced by synthesis: used in organic synthesis and in the manufacture of inexpensive perfumes.

Origin of methylheptenone

methyl- + heptene + -one