counter-earth
counter-earth · counter-earths
A hypothetical planet sharing an orbit with the earth, but on the opposite side of the sunA hypothetical planet sharing an orbit with the earth, but on the opposite side of the sun.
Meaning
1 senses(no plural)A hypothetical planet sharing an orbit with the earth, but on the opposite side of the sun.
Origin
From counter- + earth.From counter- + earth.
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