Acyclic and cyclic
hydrocarbons having one or more carbon–carbon double bonds, apart from the formal ones in
aromatic compounds. The class olefins subsumes
alkenes and cycloalkenes and the corresponding polyenes.
Source:
PAC, 1995, 67, 1307
(Glossary of class names of organic compounds and reactivity intermediates based on
structure (IUPAC Recommendations 1995))
on page 1353