[f. prec. + -ITY.] The condition or fact of being equiangular.
1855. H. Spencer, Princ. Psychol. (1873), II. 54. The equilateralness of a triangle is known from its equiangularity.
1896. H. Holman, Educ., vi. 303. It is an idea which involves the ideas of rectilinealness, quadrilateralness, equilateralness, and equiangularity.
