| Equilateral 1. (a.) Having all the sides equal; as, an equilateral triangle; an equilateral polygon. 2. (n.) A side exactly corresponding, or equal, to others; also, a figure of equal sides. Thesaurus Entries balanced, coequal, coordinate, equal, equiangular, equidimensional, equiproportional, equisided, equisized, equispaced, eurythmic, even, finished, harmonious, isometric, proportioned, regular, symmetric, uniform, well-balanced, well-set, well-set-up |