astroid

A1S1T1R1O1I1D2
/ˈæstɹɔɪd/

noun

A hypocycloid with four cusps.

OriginAncient Greek ἄστρον →
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Meanings

nounastroid (plural astroids)

plural astroids

  1. geometryA hypocycloid with four cusps.

Origin

  1. Ancient Greekἄστρον“a star”
  2. Englishastroid

From Ancient Greek ἄστρον (ástron, “a star”) + εἶδος (eîdos, “form, likeness”).

More words from Ancient Greek

Full word history & related roots →

Translations

Czech astroida
  • astroidahypocycloid with four cusps
Finnish asteroidi
  • asteroidihypocycloid with four cusps
French astroïde
  • astroïdehypocycloid with four cusps
Romanian astroidă
  • astroidăhypocycloid with four cusps
Russian астро́ида
  • астро́ида (astróida)hypocycloid with four cusps
Spanish astroide
  • astroidehypocycloid with four cusps

Rhymes & wordplay

Sounds the same

asteroid (one pronunciation)
Cite this entry
APA

astroid. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/astroid

MLA

“astroid.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/astroid. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “astroid,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/astroid.

Source: astroid on Wiktionary, CC BY-SA 4.0.