| ̷ ̷ ̷ ̷ at cyclo- +ˌäktəˈte.trəˌēn noun
( -s )
Etymology: International Scientific Vocabulary cycl- + octa- + tetra- + -ene
: a liquid unsaturated cyclic hydrocarbon C 8 H 8 that resembles benzene in its cyclic completely conjugated structure but is much more reactive than benzene and is usually made by catalytic polymerization of acetylene under pressure