cyclooctatetraene
noun
cy·clo·octa·tet·ra·ene
plural -s
: a liquid unsaturated cyclic hydrocarbon C8H8 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
Word History
Etymology
International Scientific Vocabulary cycl- + octa- + tetra- + -ene