equilateral

adjective equi·lat·er·al \ˌē-kwə-ˈla-tə-rəl, ˌe-, -ˈla-trəl\

Definition of EQUILATERAL

: having all sides equal <an equilateral triangle> <an equilateral polygon> — see triangle illustration

: having all the faces equal <an equilateral polyhedron>

See equilateral defined for kids

Late Latin aequilateralis, from Latin aequi- + later-, latus side — more at lateral

First Known Use: 1570

EQUILATERAL Defined for Kids

adjective equi·lat·er·al \ˌē-kwə-ˈla-tə-rəl, ˌe-kwə-\

: having all sides or faces equal <an equilateral triangle>

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