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Synonyms of hydrogen

10 similar words

Another word for hydrogen is dihydrogen. Other synonyms of hydrogen are E949, hydrogen hydride, protium, element 1 and inflammable air.

Synonyms and similar words for hydrogen

nounA molecule of this molecular species.

  • dihydrogenThe divalent radical formed from two separate hydrogen atoms or ions.
  • E949
  • hydrogen hydride

nounSynonym of protium (“the lightest and most common isotope of hydrogen (sense 1; symbol H, ¹H, or...

  • protiumThe lightest and most common isotope of hydrogen, having a single proton and no neutrons: 11H. It is the only stable...

nounElement.

Meaning of hydrogen

  1. noun The lightest chemical element (symbol H), with an atomic number of 1 and atomic weight of 1.008.
  2. noun An atom of this element.
  3. noun Molecular hydrogen (sense 1; symbol H₂), a colourless, odourless and flammable gas at room temperature.

Full definition of hydrogen

hydrogen in other languages

Questions about synonyms of hydrogen

What is another word for hydrogen?
Hydrogen has 10 synonyms on Word.ws, such as dihydrogen, E949, hydrogen hydride, protium, element 1, inflammable air, hydrogen air and hydrogen gas.
What does hydrogen mean?
Hydrogen means the lightest chemical element (symbol H), with an atomic number of 1 and atomic weight of 1.008.

Source and license

Adapted from Wiktionary: hydrogen (page history and authors) and the entries of the words listed. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws grouped the synonyms and antonyms by meaning and added links. Wiktionary data of 2026-09-02.

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