DHMO

D2H4M3O1

A form of dihydrogen monoxide — H₂O, water.

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Meanings

nounDHMO (uncountable)
  1. abbreviationhumorousuncountablechemistryAbbreviation of dihydrogen monoxide.

    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.

    1995, John December, quoting Craig Jackson, The World Wide Web Unleashed, 2nd edition, Indianapolis, Ind.: Sams.net, →ISBN, page 450
  2. abbreviationinitialismuncountableInitialism of dental health maintenance organization (i.e., a dental HMO).

Synonyms & antonyms

Also see
diprotium monoxide

Rhymes & wordplay

Anagrams

Dohm
Cite this entry
APA

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

MLA

“DHMO.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/DHMO. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “DHMO,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/DHMO.

Source: DHMO on Wiktionary, CC BY-SA 4.0.