counter-earth

名词 n.
中文释义

英文释义

名词 n.
  1. A hypothetical planet sharing an orbit with the earth, but on the opposite side of the sun. no-plural
    — To the same period may perhaps belong the theory that the comet is a separate planet; this eighth planet might serve, when the counter-earth had been discarded, to maintain the number ten in regard to the heavenly bodies.

词形变化

counter-Earth alternative counterearth alternative

词源

From counter- + earth.
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