Meanings
plural areoids
- astronomyThe 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
Synonyms & antonyms
nounThe 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.
Origin
- Ancient Greek-ειδής“-oid”
- Ancient GreekἌρης“Ares”
- Englishareoid
From 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.
More words from Ancient Greek
Full word history & related roots →Translations
German Marsoid
- MarsoidTranslations
Polish marsoid
- marsoidTranslations
Rhymes & wordplay
Anagrams
Cite this entry
areoid. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/areoid
“areoid.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/areoid. Accessed November 3, 2026.
WatkinsX Dictionary, s.v. “areoid,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/areoid.
Source: areoid on Wiktionary, CC BY-SA 4.0.