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.
PAC, 1995, 67, 1307
(Glossary of class names of organic compounds and reactivity intermediates based on
structure (IUPAC Recommendations 1995))
on page 1353