a. Geom. [f. CO- + ORTHOTOMIC.] Cutting one another at right angles at each point of intersection: said of a system of curves, every pair of which intersect orthogonally.
1884. Jeffery, Proc. Lond. Math. Soc., XVI. 114. Coorthotomic conditions. Ibid., 116. Four fixed courthotomic circles. Ibid., 125. Coorthotomic circles of inversion.
