Alkeni

Alkeni is a term that may refer to several different concepts in different contexts, and there is no single widely accepted definition. In established science, alkene is the term used for hydrocarbons that contain a carbon-carbon double bond; alkeni is not recognized as a formal term in current IUPAC nomenclature and should not be treated as a synonym for alkene. When used as a word in literature, media, or personal names, alkeni often appears as a proper noun rather than a technical term, and its meaning is determined by the specific work or community.

In onomastics and geography, alkeni or Alkeni may function as a surname or as a place name in various languages. Such uses are variable and typically not connected to a single dominant locale or lineage. Etymology, where applicable, depends on language and origin; in most cases, the form is simply a phonetic variation or transliteration of different roots and does not imply a unified origin.

Because it lacks a standard meaning, any explanation of alkeni should reference the specific context in which the term appears. See also alkene, alkenes, toponymy, onomastics.