Dihydrogen

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    The divalent radical formed from two separate hydrogen atoms or ions. uncountable
  2. 2
    Describing a dihydrogen bond. uncountable

    "The Invisible Killer Dihydrogen monoxide is colorless, odorless, tasteless, and kills uncounted thousands of people every year. Most of these deaths are caused by accidental inhalation of DHMO, but the dangers of dihydrogen monoxide do not end there."

  3. 3
    The diatomic hydrogen molecule H₂. uncountable

Synonyms

All synonyms
hydrogen

Example

More examples

"Dihydrogen monoxide is the overly technical term for water."

Etymology

From di- + hydrogen.

Related phrases

calcium dihydrogen phosphatedihydrogen arsenatedihydrogen monoxidedihydrogen oxidedihydrogen phosphatedihydrogen bond

More for "dihydrogen"

SynonymsSentencesPronunciationTranslate

Next best steps

Find stronger synonymsSee usage examplesCheck pronunciationBrowse writing guides

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.