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

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

© Webster 1913.

**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*.

© Webster 1913.

**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.

© Webster 1913.

**Curve**, v. i.

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

© Webster 1913.