antichthon

Definitions

from The Century Dictionary and Cyclopedia

  • noun In Pythagorean astronomy, an imaginary invisible planet continually opposing the earth and eclipsing the central fire, round which it was supposed to revolve, in common with the earth, moon, sun, certain planets, and the fixed stars.
  • noun (plural) The inhabitants of an opposite hemisphere.

Examples

Note

This comes from a Greek term meaning ‘counterearth, southern hemisphere.’