astroidWiktionary 原文/ˈæstrɔɪd/词源链古希腊语Ancient Greek约前 1500–前 300 年ἄστρον‘a star’↓ 派生英语Englishastroid词源说明From Ancient Greek ἄστρον (ástron, “a star”) + εἶδος (eîdos, “form, likeness”).释义名词noun1(geometry) A hypocycloid with four cusps.同族词相关词 2asteroid·astronomy