E`qui*an"gu*lar (?), a. [Equi- + angular. Cf. Equangular.]
Having equal angles; as, an equiangular figure; a square is equiangular.
Equiangular spiral. Math. See under Spiral, n. -- Mutually equiangular, applied to two figures, when every angle of the one has its equal among the angles of the other.
© Webster 1913.