Eratosthenian

E1R1A1T1O1S1T1H4E1N1I1A1N1
/ˌɛɹətəsˈθiːniən//ɛˌɹætəsˈθiːniən/

proper noun

The epoch in the lunar geologic timescale that occurred between 3200 million and 1100 million years ago.

Scrabble 16
Ask AI about this wordChatGPTClaudePerplexityGoogle AIGrok

Meanings

proper noun
  1. The epoch in the lunar geologic timescale that occurred between 3200 million and 1100 million years ago.
Cite this entry
APA

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

MLA

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

Chicago

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

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