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Pott''s Disease :: Pott's disease () Caries of the vertebrae, frequently resulting in curvature of the spine and paralysis of the lower extremities; -- so named from Percival Pott, an English surgeon..

Chordee :: Chordee (n.) A painful erection of the penis, usually with downward curvature, occurring in gonorrhea..

Curvature :: Curvature (n.) 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 curve..

Fair :: Fair (superl.) Without sudden change of direction or curvature; smooth; fowing; -- said of the figure of a vessel, and of surfaces, water lines, and other lines..

Arc :: Arc (n.) A curvature in the shape of a circular arc or an arch; as, the colored arc (the rainbow); the arc of Hadley's quadrant..

Indicatrix :: Indicatrix (n.) A certain conic section supposed to be drawn in the tangent plane to any surface, and used to determine the accidents of curvature of the surface at the point of contact. The curve is similar to the intersection of the surface with a parallel to the tangent plane and indefinitely near it. It is an ellipse when the curvature is synclastic, and an hyperbola when the curvature is anticlastic..

Anticlastic :: Anticlastic (a.) Having to opposite curvatures, that is, curved longitudinally in one direction and transversely in the opposite direction, as the surface of a saddle..

Level :: Level (a.) Even; flat; having no part higher than another; having, or conforming to, the curvature which belongs to the undisturbed liquid parts of the earth's surface; as, a level field; level ground; the level surface of a pond or lake..

Curvature :: Curvature (n.) The amount of degree of bending of a mathematical curve, or the tendency at any point to depart from a tangent drawn to the curve at that point..

Aplanatic :: Aplanatic (a.) Having two or more parts of different curvatures, so combined as to remove spherical aberration; -- said of a lens..

Crook :: Crook (v. i.) To bend; to curve; to wind; to have a curvature.

Lordosis :: Lordosis (n.) Any abnormal curvature of the bones.

Arch :: Arch (n.) Any curvature in the form of an arch; as, the arch of the aorta..

Chicken-breasted :: Chicken-breasted (a.) Having a narrow, projecting chest, caused by forward curvature of the vertebral column..

Osculate :: Osculate (v. t.) To touch closely, so as to have a common curvature at the point of contact. See Osculation, 2..

Spherometer :: Spherometer (n.) An instrument for measuring the curvature of spherical surface, as of lenses for telescope, etc..

Geodesy :: Geodesy (n.) That branch of applied mathematics which determines, by means of observations and measurements, the figures and areas of large portions of the earth's surface, or the general figure and dimenshions of the earth; or that branch of surveying in which the curvature of the earth is taken into account, as in the surveys of States, or of long lines of coast..

Incurvation :: Incurvation (n.) The state of being bent or curved; curvature.

Lordosis :: Lordosis (n.) A curvature of the spine forwards, usually in the lumbar region..

Plane :: Plane (a.) A surface, real or imaginary, in which, if any two points are taken, the straight line which joins them lies wholly in that surface; or a surface, any section of which by a like surface is a straight line; a surface without curvature..

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