Siderian

Si·der·i·an
S1I1D2E1R1I1A1N1
/saɪˈdɪəri.ənsɪ-/

adjective

Of a geologic period within the Paleoproterozoic era from about 2500 to 2300 million years ago.

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Meanings

adjectiveSiderian (comparative more Siderian, superlative most Siderian)

comparative more Siderian · superlative most Siderian

  1. geographyOf a geologic period within the Paleoproterozoic era from about 2500 to 2300 million years ago.
proper noun
  1. geographyThe Siderian period.

Origin

From Greek sideros.

Full word history & related roots →

Translations

Estonian sider
  • siderSiderian period
Greek Σιδέρια
  • Σιδέρια (Sidéria)Siderian period

Rhymes & wordplay

Anagrams

arsinidediarsinedraisineSerindia
Cite this entry
APA

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

MLA

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

Chicago

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

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