curvity

The state of being curved, crooked, or inclined from a straight line; flexure; curvity; as, the bent of a bow.

What then, saith he, would becom of a Glass of 10000 feet, which, according to the said Table, would have more than four feet, or four feet and nine inches, or five feet, seven inches Aperture, and of which the Ring, though it were two feet nine inches, would have but one minut of Inclination, and the Glass of 5 feet Aperture would have but 4 minuts, and the curvity of it would be less than the eight part of a Line.

The Knowledge of the Eclipse's Quantity and Duration, the Shadows, Curvity, and Inclination, &c. conduce only to the former of these ends.

He had written his essay on fluxions, described their application to fluents and tangents, and devised a plan for finding the radius of curvity in crooked lines.

Curvature -- N. curvature, curvity†, curvation†; incurvature†, incurvity†; incurvation†; bend; flexure, flexion, flection†; conflexure†; crook, hook, bought, bending; deflection, deflexion†; inflection, inflexion†; concameration†; arcuation†, devexity†, turn, deviation, detour, sweep; curl, curling; bough; recurvity†, recurvation†; sinuosity &c.