Skip to content

counter-earth

Today it means: A hypothetical planet sharing an orbit with the earth, but on the opposite side of the sun. Full definition →

Ask AI about its historyChatGPT Claude Perplexity Google AI Grok

counter-earth · noun¹

From counter- + earth.

counter-Earth · noun²

From counter- + Earth.

Etymology from Wiktionary, CC BY-SA 4.0.