Astroid

//ˈæstɹɔɪd// noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A hypocycloid with four cusps.

Etymology

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

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.