Tonian

T1O1N1I1A1N1
UK/ˈtəʊ.ni.ən/US/ˈtoʊ.ni.ən/

adjective

Of a geologic period within the Neoproterozoic era from about 1000 to 850 million years ago.

OriginAncient Greek τόνος →
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Meanings

adjectiveTonian (not comparable)
  1. not comparablegeographyOf a geologic period within the Neoproterozoic era from about 1000 to 850 million years ago.
proper noun
  1. geographyThe Tonian period.

Origin

  1. Ancient Greekτόνος“stretch”
  2. EnglishTonian

From Ancient Greek τόνος (tónos, “stretch”).

More words from Ancient Greek

Full word history & related roots →

Translations

Dutch tonium
  • toniumTonian period
Estonian ton
  • tonTonian period
Greek Τόνια
  • Τόνια (Tónia)Tonian period
Hungarian Tonium
  • ToniumTonian period

Rhymes & wordplay

Rhymes with Tonian

SmithsonianEstonianMacedonianhamiltoniannewtonianCaledoniandraconianOregonianIonianBostonianDevonianamazonianDobsonianJeffersonianWashingtonianJagiellonianparkinsonianjacksonianWilsonianPetroniusPrincetonianPoissonianCatalonianHoustonian
All rhymes →

Anagrams

nationAntonianoint
Cite this entry
APA

Tonian. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/Tonian

MLA

“Tonian.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Tonian. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “Tonian,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/Tonian.

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