cumene
noun
cu·mene
ˈkyü(ˌ)mēn
plural -s
: a colorless oily hydrocarbon (CH3)2CHC6H5 obtained by acid-catalyzed alkylation of benzene with propylene and used as an additive for high-octane motor fuel; isopropyl-benzene
Word History
Etymology
International Scientific Vocabulary cum- + -ene; originally formed as French cumène