n. [ L. curvatio. ] The act of bending or crooking. [ 1913 Webster ]
n. [ L. incurvatio: cf. F. incurvation. ] [ 1913 Webster ]
An incurvation of the rays. Derham. [ 1913 Webster ]
n. The act of recurving, or the state of being recurved; a bending or flexure backward. [ 1913 Webster ]