counterearth

[ koun-ter-urth ]
/ ˈkaʊn tərˌɜrθ /

noun

(in Pythagorean astronomy) a planet, out of sight from our part of the earth, whose shadow upon the sun and moon, cast by a central fire that is also out of sight, causes the eclipses.
Also called antichthon.

Origin of counterearth

1855–60; counter- + earth, as translation of Greek antíchthōn

Words nearby counterearth

counterconditioning, countercoup, counterculture, countercurrent, countercyclical, counterearth, countereconomy, counterespionage, counterexample, counterextension, counterfactual