Standard Lemma guide

astroid

noun · 1 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • /ˈæstɹɔɪd/
  • US: Recorded audio is listed in the source snapshot.
  • homophone: asteroid (one pronunciation)

1

noun

Meaning 1

A hypocycloid with four cusps.

Definition source: English Wiktionary via Wiktextract

Topics: geometry, mathematics, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

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

Across languages

Translations

7 source translations are retained for this English entry.

  • Czech: astroida — hypocycloid with four cusps
  • Finnish: asteroidi — hypocycloid with four cusps
  • French: astroïde — hypocycloid with four cusps
  • Ido: astroido — hypocycloid with four cusps
  • Romanian: astroidă — hypocycloid with four cusps
  • Russian: астро́ида (astróida) — hypocycloid with four cusps
  • Spanish: astroide — hypocycloid with four cusps