dihydrogen

English

Etymology

di- +‎ hydrogen

Noun

dihydrogen (uncountable)

  1. (chemistry) The divalent radical formed from two separate hydrogen atoms or ions.
  2. (chemistry, modifying a noun) Describing a dihydrogen bond.

Usage notes
  • Used informally in dihydrogen monoxide, the supposed scientific name for water
  • Used in mixed salts, such as calcium dihydrogen phosphate

Derived terms
  • calcium dihydrogen phosphate
  • dihydrogen arsenate
  • dihydrogen monoxide
  • dihydrogen oxide
  • dihydrogen phosphate
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