Category:Perpendicular

Per`pen*dic"u*lar, a. Etym: [l. perpendicularis, perpendicularius: Cf. F. perpendiculaire. See perpendicle, pension.]

1. Exactly upright or vertical; pointing to the zenith; at right Angles to the plane of the horizon; extending in a right line from Any point toward the center of the earth.

2. (geom.)

Defn: at right angles to a given line or surface; as, the line ad is Perpendicular to the line bc. Perpendicular style (arch.), a name Given to the latest variety of english gothic architecture, which Prevailed from the close of the 14th century to the early part of the 16th; -- probably so called from the vertical style of its window Mullions.

Perpendicular Per`pen*dic"u*lar, n.

1. A line at right angles to the plane of the horizon; a vertical Line or direction.

2. (geom.)

Defn: a line or plane falling at right angles on another line or Surface, or making equal angles with it on each side.