Phrase guide

heavy hydrogen

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

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No pronunciation record was provided for this word.

1

noun

Meaning 1

Synonym of deuterium.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: deuterium

Antonyms: none provided

2

noun

Meaning 2

an isotope of hydrogen which has one neutron (as opposed to zero neutrons in hydrogen)

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: deuterium

Antonyms: none provided

Broader terms: isotope, hydrogen atom

History

Etymology

An atom of said isotope weighs about 2 daltons, about twice as much as an atom of light hydrogen.

Across languages

Translations

20 source translations are retained for this English entry.

  • Bulgarian: тежък водород (težǎk vodorod) — deuterium — see also deuterium
  • Catalan: hidrogen pesant — deuterium — see also deuterium
  • Chinese Cantonese: 重氫 /重氢 (zung6 hing1) — deuterium — see also deuterium
  • Chinese Mandarin: 重氫 /重氢 (zhòngqīng) — deuterium — see also deuterium
  • Chinese Mandarin: 氘 (dāo) — deuterium — see also deuterium
  • Finnish: raskas vety — deuterium — see also deuterium
  • French: hydrogène lourd — deuterium — see also deuterium
  • German: schwerer Wasserstoff — deuterium — see also deuterium
  • Icelandic: tvívetni — deuterium — see also deuterium
  • Icelandic: þungt vetni — deuterium — see also deuterium
  • Icelandic: þungavetni — deuterium — see also deuterium
  • Japanese: 重水素 (jūsuiso) — deuterium — see also deuterium
  • Korean: 중수소 (jungsuso) — deuterium — see also deuterium
  • Korean: 이중수소 (ijungsuso) — deuterium — see also deuterium
  • Polish: deuter — deuterium — see also deuterium
  • Romanian: hidrogen greu — deuterium — see also deuterium
  • Russian: тяжёлый водоро́д (tjažólyj vodoród) — deuterium — see also deuterium
  • Swedish: tungt väte — deuterium — see also deuterium
  • Tagalog: mabigat na idroheno — deuterium — see also deuterium
  • Tagalog: haydroheng mabigat — deuterium — see also deuterium