monatomic

M3O1N1A1T1O1M3I1C3

adjective

Of an element, consisting of a single atom in the molecule, for example, the noble gases. Note: Strictly speaking, a molecule has at least two atoms.

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Meanings

adjectivemonatomic (not comparable)

alternative monoatomic

  1. not comparablechemistryOf an element, consisting of a single atom in the molecule, for example, the noble gases. Note: Strictly speaking, a molecule has at least two atoms.

Synonyms & antonyms

adjectiveof or relating to an element consisting of a single atom

Similar

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Englishmon-
  2. Proto-Indo-European*né
  3. Proto-Indo-European*n̥-
  4. Proto-Hellenic*ə-
  5. Ancient Greekἀ- (a-)
  6. Proto-Indo-European*temh₁-
  7. Ancient Greekτέμνω (témnō)
  8. Ancient Greek*τομός (*tomós)
  9. Ancient Greekἄτομος (átomos)
  10. Latinatomu
  11. Middle Frenchathome
  12. Middle Englishattome
  13. Englishatom
  14. Englishatomic
  15. Englishmonatomic

From mon- + atomic.

Full word history & related roots →

Translations

Bulgarian едноатомен
  • едноатомен (ednoatomen)consisting of a single atom
Esperanto unuatoma
  • unuatomaconsisting of a single atom
Finnish yksiatominen
  • yksiatominenconsisting of a single atom
French monoatomique
  • monoatomiqueconsisting of a single atom
Hungarian egyatomos
  • egyatomosconsisting of a single atom
Irish aon-adamhach
  • aon-adamhachconsisting of a single atom
Italian monoatomico
  • monoatomicoconsisting of a single atom
Norwegian Bokmål enatomig
  • enatomigconsisting of a single atom
Portuguese monoatómico, monoatômico
  • monoatómicoconsisting of a single atom
  • monoatômicoconsisting of a single atom
Spanish monoatómico
  • monoatómicoconsisting of a single atom
Cite this entry
APA

monatomic. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/monatomic

MLA

“monatomic.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/monatomic. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “monatomic,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/monatomic.

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