superanoxia

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noun

A period during which there was very little free oxygen in the environment, and many organisms became extinct

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Meanings

nounsuperanoxia (uncountable)
  1. uncountablegeographyA period during which there was very little free oxygen in the environment, and many organisms became extinct

Origin

From super- + anoxia.

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

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