Word.ws English Dictionary

deuterium

Syllables: deu·te·ri·um/djuːˈtɪəɹɪəm/US/djuːˈtɪɹi.əm/

deuterium noun: an isotope of hydrogen with one proton and one neutron in each atom - 21H.

deuterium: an isotope of hydrogen with one proton and one neutron in each atom - 21H
Image: BruceBlaus, CC BY 3.0, via Wikimedia Commons

Noun

deuterium (countable and uncountable, plural deuteriums)

  1. (uncountable) An isotope of hydrogen with one proton and one neutron in each atom - 21H.
    • Heavy water is "heavy" because it contains deuterium.
  2. (countable) An atom of this isotope.
    • There were about 80 deuteriums for every million protiums, and virtually no tritium.

deuterium meaning in Hindi, Tamil, Bengali and Malay

deuterium in Hindi

isotope of hydrogen — see also heavy hydrogen
भारी उदजन bhārī udjan

deuterium in Tamil

தூத்தேரியம், டியூட்டிரியம், துத்தேரியம்

deuterium in Bengali

isotope of hydrogen — see also heavy hydrogen
ডিউটেরিয়াম ḍiuṭeriẏam

deuterium in Malay

isotope of hydrogen — see also heavy hydrogen
deuterium

Synonyms of deuterium

Forms of deuterium

pluraldeuteriums

Origin of deuterium

From deutero- + -ium. Coined by American physical chemist Harold Urey, from Ancient Greek δεύτερος (deúteros, “second”).

Words formed from deuterium

Words that rhyme with deuterium

7 more rhymesFewer rhymes

Questions about deuterium

What does deuterium mean?
Deuterium means an isotope of hydrogen with one proton and one neutron in each atom - 21H.
What is deuterium in Hindi?
Deuterium in Hindi is भारी उदजन (bhārī udjan). See Deuterium meaning in Hindi.
What part of speech is deuterium?
Deuterium is a noun.
How do you pronounce deuterium?
Deuterium is pronounced /djuːˈtɪəɹɪəm/ (UK).
What is the plural of deuterium?
The plural of deuterium is deuteriums.

Words near deuterium in the dictionary

  1. deuteriations
  2. deuteric
  3. deuteride
  4. deuterides
  5. deuteriochloroform
  6. deuterium
  7. deuterium bottleneck
  8. deuterium oxide
  9. deuteriums
  10. deutero-
  11. Deutero-Isaiah

Source and license

Adapted from Wiktionary: deuterium (page history and authors); deuterium (Tamil Wiktionary) (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Vealhurl-deuterium.wav.

Cite this entry: “deuterium.” Word.ws, https://word.ws/deuterium. Based on Wiktionary, CC BY-SA 4.0.