Word.ws English Dictionary

anti-earth

anti-earth is the alternative form of antiearth.

Meaning of antiearth

Noun

antiearth

  1. A hypothetical analog to Earth composed entirely of antimatter.
    • This principle states that, if we could somehow replace every particle on earth with its antiparticle—thus creating a sort of antiearth—no one would be able to tell the difference.1958, Columbia University Forum - Volumes 2-3, page 29
  2. (historical) A hypothetical twin planet to Earth, proposed by the Pythagoreans, which cannot be seen from Earth.
    • The old imaginary antiearth (άγτιχϑωγ) of the Pythagoreans does not belong to the sphere of these conjectures. It and the Earth were supposed to have a parallel concentric movement; it was an idea devised to spare the Earth, which was supposed to perform around the central fire a planetary...1852, Alexander von Humboldt, Cosmos: Sketch of a Physical Description of the Universe

See all 4 meanings of antiearth

Questions about anti-earth

What is anti-earth the alternative form of?
Anti-earth is the alternative form of antiearth.

Words near anti-earth in the dictionary

  1. anti-down quark
  2. anti-down quarks
  3. anti-drug
  4. anti-dumping
  5. anti-Dutch
  6. anti-earth
  7. anti-earthquake
  8. anti-eavesdropping
  9. anti-edge
  10. anti-Egyptian
  11. anti-ejaculatory

Source and license

Adapted from Wiktionary: anti-earth (page history and authors); antiearth (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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