areoid

English

Etymology

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

areoid (plural areoids)

(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

Martian geoid
Mars geoid

Hypernyms

geoid (used in the generic sense)

Coordinate terms

geoid (Earth)
aphroditoid (Venus)

Translations

German: Marsoid

Polish: marsoid

Anagrams

roadie