Definitions of perpendicular

a cord from which a metal weight is suspended pointing directly to the earth's center of gravity; used to determine the vertical from a given point

a straight line at right angles to another line

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

A line or plane falling at right angles on another line or surface, or making equal angles with it on each side.

An upright line; a line at right angles with another.

Perpendicularity.

A perpendicular line or plane.

A perpendicular line.

A perpendicular line. See Perpend.

extremely steep; " the great perpendicular face of the cliff"

at right angles to the plane of the horizon or a base line; " a vertical camera angle"; " the monument consists of two vertical pillars supporting a horizontal slab"; " measure the perpendicular height"

a Gothic style in 14th and 15th century England; characterized by vertical lines and a four centered ( Tudor) arch and fan vaulting

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.

At right angles to a given line or surface; as, the line ad is perpendicular to the line bc.

At right angles to a line or surface; upright.

Exactly upright: extending in a straight line toward the centre of the earth: ( geom.) at right angles to a given line or surface.

Exactly upright; meeting at right angles.

Upright; vertical; meeting a given line at right angles.

Extending in a straight line to the centre of the earth, or at right angles to the horizon; at right angles to a given line or surface.

Hanging or extending in a right line from any point; at right angles to any plane or line; vertical.