areoid

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English[edit]

Etymology[edit]

areo- (Mars) +‎ -oid (like). From Ancient Greek Ἄρης (Árēs, Ares), the Greek God of War, equivalent to the Roman God of War Mars (Mars), synonymous use for the Red Planet; and Ancient Greek -ειδής (-eidḗs, -oid) suffix. Coined in analogy to geoid, the equivalent for planet Earth.

Noun[edit]

areoid (plural areoids)

  1. (astronomy, geology, planetology) The analogue of the geoid for the planet Mars; the Martian geoid. The gravitational and rotational equipotential surface for Mars. The surface that provides the datum line (the equivalent for sea level) for Mars.

Synonyms[edit]

Hypernyms[edit]

  • geoid (used in the generic sense)

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