equilateral adjective.
[i:kwɪ'lat(ǝ)r(ǝ)l, ɛ-] L16.[French équilateral or late Latin aequilateralis, from aequilaterus, formed as EQUI- + Latin later-, latus side: see -AL1.]Having all its sides of equal length; (of a hyperbola) having axes of equal length and asymptotes at right angles.
[TahlilGaran] English Dictionary ▲