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Curve (k?rv), a. [L. curvus bent, curved. See Cirb.]

Bent without angles; crooked; curved; as, a curve line; a curve surface.

Curve, n. [See Curve, a., Cirb.]

1.

A bending without angles; that wcich is bent; a flexure; as, a curve in a railway or canal.

2. Geom.

A line described according to some low, and having no finite portion of it a straight line.

Axis of a curve. See under Axis. -- Curve of quickest descent. See Brachystochrone. -- Curve tracing Math., the process of determining the shape, location, singular points, and other perculiarities of a curve from its equation. -- Plane curve Geom., a curve such that when a plane passes through three points of the curve, it passes through all the other points of the curve. Any other curve is called a curve of double curvature, or a twisted curve.

Curve, v. t. [imp. & p.p. Curved (k?rvd); p. pr. & vb. n. Curving.] [L. curvare., fr. curvus. See Curve, a., Curb.]

To bend; to crook; as, to curve a line; to curve a pipe; to cause to swerve from a straight course; as, to curve a ball in pitching it.

Curve, v. i.

To bend or turn gradually from a given direction; as, the road curves to the right.