hydrogen monoxide

noun

dihydrogen monoxide (water (H₂O), but not hydrogen peroxide (H₂O₂) or the hydroxyl radical (-OH))

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Meanings

nounhydrogen monoxide (uncountable)
  1. informaluncountabledihydrogen monoxide (water (H₂O), but not hydrogen peroxide (H₂O₂) or the hydroxyl radical (-OH))
Cite this entry
APA

hydrogen monoxide. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/hydrogen%20monoxide

MLA

“hydrogen monoxide.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/hydrogen%20monoxide. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “hydrogen monoxide,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/hydrogen%20monoxide.

Source: hydrogen monoxide on Wiktionary, CC BY-SA 4.0.