Standard Lemma guide

alkene

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • Australian, Canada, General-American, Received-Pronunciation: /ˈælkin/
  • North Carolina Recorded audio is listed in the source snapshot.
  • Southern-England: Recorded audio is listed in the source snapshot.
  • rhymes with -in
  • CMU ARPABET: AE1 L K IY2 N Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

An unsaturated, aliphatic hydrocarbon with one or more carbon–carbon double bonds.

Definition source: English Wiktionary via Wiktextract

Topics: chemistry, natural-sciences, organic-chemistry, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

any unsaturated aliphatic hydrocarbon

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: olefine, olefin

Antonyms: none provided

Broader terms: aliphatic compound

Narrower terms: ethylene, ethene

History

Etymology

No etymology was provided for this word.

Across languages

Translations

36 source translations are retained for this English entry.

  • Catalan: alquè — unsaturated aliphatic hydrocarbon with one or more carbon–carbon double bonds
  • Chinese Cantonese: 烯 (hei1) — unsaturated aliphatic hydrocarbon with one or more carbon–carbon double bonds
  • Chinese Cantonese: 烯烴 /烯烃 (hei1 ting1) — unsaturated aliphatic hydrocarbon with one or more carbon–carbon double bonds
  • Chinese Mandarin: 烯 (xī) — unsaturated aliphatic hydrocarbon with one or more carbon–carbon double bonds
  • Chinese Mandarin: 烯烴 /烯烃 (xītīng) — unsaturated aliphatic hydrocarbon with one or more carbon–carbon double bonds
  • Danish: alken — unsaturated aliphatic hydrocarbon with one or more carbon–carbon double bonds
  • Esperanto: alkeno — unsaturated aliphatic hydrocarbon with one or more carbon–carbon double bonds
  • Estonian: alkeen — unsaturated aliphatic hydrocarbon with one or more carbon–carbon double bonds
  • Finnish: alkeeni — unsaturated aliphatic hydrocarbon with one or more carbon–carbon double bonds
  • French: alcène — unsaturated aliphatic hydrocarbon with one or more carbon–carbon double bonds
  • German: Alken — unsaturated aliphatic hydrocarbon with one or more carbon–carbon double bonds
  • Hungarian: alkén — unsaturated aliphatic hydrocarbon with one or more carbon–carbon double bonds
  • Ido: alkeno — unsaturated aliphatic hydrocarbon with one or more carbon–carbon double bonds
  • Indonesian: alkena — unsaturated aliphatic hydrocarbon with one or more carbon–carbon double bonds
  • Italian: alchene — unsaturated aliphatic hydrocarbon with one or more carbon–carbon double bonds
  • Japanese: アルケン (aruken) — unsaturated aliphatic hydrocarbon with one or more carbon–carbon double bonds
  • Japanese: オレフィン (orefin) — unsaturated aliphatic hydrocarbon with one or more carbon–carbon double bonds
  • Japanese: オレフィン系炭化水素 (orefin-kei tanka suiso) — unsaturated aliphatic hydrocarbon with one or more carbon–carbon double bonds
  • Japanese: エチレン系炭化水素 (echiren-kei tanka suiso) — unsaturated aliphatic hydrocarbon with one or more carbon–carbon double bonds
  • Khmer: អាល់សែន (ʼalsaen) — unsaturated aliphatic hydrocarbon with one or more carbon–carbon double bonds
  • Korean: 알켄 (alken) — unsaturated aliphatic hydrocarbon with one or more carbon–carbon double bonds
  • Latvian: alkēns — unsaturated aliphatic hydrocarbon with one or more carbon–carbon double bonds
  • Māori: waiwaro-rua — unsaturated aliphatic hydrocarbon with one or more carbon–carbon double bonds
  • Norwegian Bokmål: alken — unsaturated aliphatic hydrocarbon with one or more carbon–carbon double bonds
  • Norwegian Nynorsk: alken — unsaturated aliphatic hydrocarbon with one or more carbon–carbon double bonds
  • Persian: آلکن (âlken) — unsaturated aliphatic hydrocarbon with one or more carbon–carbon double bonds
  • Polish: alken — unsaturated aliphatic hydrocarbon with one or more carbon–carbon double bonds
  • Portuguese: alceno — unsaturated aliphatic hydrocarbon with one or more carbon–carbon double bonds
  • Romanian: alchenă — unsaturated aliphatic hydrocarbon with one or more carbon–carbon double bonds
  • Russian: алке́н (alkén) — unsaturated aliphatic hydrocarbon with one or more carbon–carbon double bonds
  • Spanish: alqueno — unsaturated aliphatic hydrocarbon with one or more carbon–carbon double bonds
  • Swedish: alken — unsaturated aliphatic hydrocarbon with one or more carbon–carbon double bonds
  • Turkish: alken — unsaturated aliphatic hydrocarbon with one or more carbon–carbon double bonds
  • Ukrainian: алке́н (alkén) — unsaturated aliphatic hydrocarbon with one or more carbon–carbon double bonds
  • Vietnamese: anken — unsaturated aliphatic hydrocarbon with one or more carbon–carbon double bonds
  • Welsh: alcen — unsaturated aliphatic hydrocarbon with one or more carbon–carbon double bonds
Real reading context

alkene in complete knowledge articles