# Angle

**Angle**

1. To fish with an **angle** (fishhook), or with hook and line.

2. (Science: geometry) The figure made by two lines which meet. The difference of direction of two lines. In the lines meet, the point of meeting is the vertex of the **angle**.

3. A projecting or sharp corner; an angular fragment. *Though but an angle reached him of the stone.* (Dryden)

Curvilineal **angle**, one formed by two curved lines. External angles, angles formed by the sides of any right-lined figure, when the sides are produced or lengthened. Internal angles, those which are within any right-lined figure. Mixtilineal **angle**, one formed by a right line with a curved line. Oblique **angle**, one acute or obtuse, in opposition to a right **angle**. Obtuse **angle**, one greater than a right **angle**, or more than 90 deg . Rectilineal or right-lined **angle**, one formed by two right lines. Right **angle**, one formed by a right line falling on another perpendicularly, or an **angle** of 90 deg (measured by a quarter circle). Solid **angle**, the figure formed by the meeting of three or more plane angles at one point. Spherical **angle**, one made by the meeting of two arcs of great circles, which mutually cut one another on the surface of a globe or sphere. Visual angle, the **angle** formed by two rays of light, or two straight lines drawn from the extreme points of an object to the center of the eye.

4. (Science: astronomy) a name given to four of the twelve astrological houses.

Origin: f. **Angle**
417
, L. Angulus **angle**, corner; akin to uncus hook, gr. Bent, crooked, angular, a bend or hollow, as. Angel hook, fish-hook, g. Angel, and f. Anchor.