Standard Lemma guide

halon

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.

  • hā′lŏn
  • Received-Pronunciation, contemporary: /ˈheɪ̯.lɒn/
  • Received-Pronunciation: /ˈheɪ̯.lɔːn/ conservative
  • Southern-England: Recorded audio is listed in the source snapshot.
  • General-American: /ˈheɪ̯.lɔn/ without the cot–caught merger
  • General-American, cot-caught-merger: /ˈheɪ̯.lɑn/
  • Canada, standard: /ˈheɪ̯.lɒn/
  • Canada, dialectal: /ˈheɪ̯.lɑn/
  • Australian: /ˈhæɪ̯.lɔn/
  • New-Zealand: /ˈhæɪ̯.lɒn/
  • Scotland: /ˈhe.lɔn/
  • CMU ARPABET: HH EY1 L AA2 N Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

A hydrocarbon (more precisely, a haloalkane) in which one or more hydrogen atoms have been replaced by halogens.

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: haloalkane

Antonyms: none provided

2

noun

Meaning 2

a compound in which the hydrogen atoms of a hydrocarbon have been replaced by bromine and other halogen atoms; very stable; used in fire extinguishers although it is thought to release bromine that depletes the ozone layer

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: organic compound, pollutant

History

Etymology

Blend of halogen + carbon.

Across languages

Translations

9 source translations are retained for this English entry.

  • Chinese Mandarin: 海龍 /海龙 (hǎilóng) — hydrocarbon in which one or more hydrogen atoms have been replaced by halogens
  • Chinese Mandarin: 哈龍 /哈龙 (hālóng) — hydrocarbon in which one or more hydrogen atoms have been replaced by halogens
  • Finnish: haloni — hydrocarbon in which one or more hydrogen atoms have been replaced by halogens
  • French: halon — hydrocarbon in which one or more hydrogen atoms have been replaced by halogens
  • German: Ha­lo­gen­was­ser­stoff — hydrocarbon in which one or more hydrogen atoms have been replaced by halogens
  • German: Halogenkohlenwasserstoff — hydrocarbon in which one or more hydrogen atoms have been replaced by halogens
  • Russian: хладо́н (xladón) — hydrocarbon in which one or more hydrogen atoms have been replaced by halogens
  • Russian: гало́н (galón) — hydrocarbon in which one or more hydrogen atoms have been replaced by halogens
  • Vietnamese: halon — hydrocarbon in which one or more hydrogen atoms have been replaced by halogens