curvature
51Angle of curvature — Curvature Cur va*ture (k?r v? t?r; 135), n. [L. curvatura. See {Curvate}.] 1. The act of curving, or the state of being bent or curved; a curving or bending, normal or abnormal, as of a line or surface from a rectilinear direction; a bend; a… …
52Chord of curvature — Curvature Cur va*ture (k?r v? t?r; 135), n. [L. curvatura. See {Curvate}.] 1. The act of curving, or the state of being bent or curved; a curving or bending, normal or abnormal, as of a line or surface from a rectilinear direction; a bend; a… …
53Circle of curvature — Curvature Cur va*ture (k?r v? t?r; 135), n. [L. curvatura. See {Curvate}.] 1. The act of curving, or the state of being bent or curved; a curving or bending, normal or abnormal, as of a line or surface from a rectilinear direction; a bend; a… …
54Radius of curvature — Curvature Cur va*ture (k?r v? t?r; 135), n. [L. curvatura. See {Curvate}.] 1. The act of curving, or the state of being bent or curved; a curving or bending, normal or abnormal, as of a line or surface from a rectilinear direction; a bend; a… …
55Spee curvature — curvature of Spee see under curve …
56curvature of field — Optics. a monochromatic aberration of a lens or other optical system in which the focal surface is curved, the refracted image of an object oriented perpendicular to the axis of the lens lying on a curved surface rather than in a plane… …
57curvature of space — Physics, Astron. 1. (in relativity) a property of space near massive bodies in which their gravitational field causes light to travel along curved paths. 2. (in cosmology) a large scale property of the universe that has an algebraic sign that… …
58curvature hyperopia — hyperopia due to insufficient convexity of the refracting surfaces …
59curvature of field — F/A/V a blurry appearance around the edge of an otherwise in focus object (or the reverse) when the velocity of light going through the lens is different at the edges than at the center of the surface, due to the lens design …
60curvature of the spine — noun See scoliosis …
