transcription, транскрипция: [ ˌē-kwə-ˈla-tə-rəl, ˌe-, -ˈla-trəl ]
adjective
Etymology: Late Latin aequilateralis, from Latin aequi- + later-, latus side — more at lateral
Date: 1570
1. : having all sides equal
an equilateral triangle
an equilateral polygon
— see triangle illustration
2. : having all the faces equal
an equilateral polyhedron