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counterearth

[ koun-ter-urth ]
/ ˈkaʊn tərˌɜrθ /
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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.
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SHALL WE PLAY A "SHALL" VS. "SHOULD" CHALLENGE?
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Question 1 of 6
Which form is used to state an obligation or duty someone has?
Also called antichthon.

Origin of counterearth

1855–60; counter- + earth, as translation of Greek antíchthōn
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022
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