Definition of perpendicular

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

Lern More About Perpendicular

Vertical :: Vertical (a.) Perpendicular to the plane of the horizon; upright; plumb; as, a vertical line..
Quarter :: Quarter (n.) One of the divisions of an escutcheon when it is divided into four portions by a horizontal and a perpendicular line meeting in the fess point.
Plumb :: Plumb (adv.) In a plumb direction; perpendicularly.
Lemniscate :: Lemniscate (n.) A curve in the form of the figure 8, with both parts symmetrical, generated by the point in which a tangent to an equilateral hyperbola meets the perpendicular on it drawn from the center..
Crotchet :: Crotchet (n.) The arrangement of a body of troops, either forward or rearward, so as to form a line nearly perpendicular to the general line of battle..
Perpendicular :: Perpendicular (n.) A line or plane falling at right angles on another line or surface, or making equal angles with it on each side..
Sine :: Sine (n.) The length of a perpendicular drawn from one extremity of an arc of a circle to the diameter drawn through the other extremity.
Cathetus :: Cathetus (n.) One line or radius falling perpendicularly on another; as, the catheti of a right-angled triangle, that is, the two sides that include the right angle..
Pale :: Pale (n.) One of the greater ordinaries, being a broad perpendicular stripe in an escutcheon, equally distant from the two edges, and occupying one third of it..
Vertical :: Vertical (a.) Of or pertaining to the vertex; situated at the vertex, or highest point; directly overhead, or in the zenith; perpendicularly above one..
Plumb :: Plumb (v. t.) To adjust by a plumb line; to cause to be perpendicular; as, to plumb a building or a wall..
Rake :: Rake (n.) the inclination of a mast or funnel, or, in general, of any part of a vessel not perpendicular to the keel..
Perpendicular :: Perpendicular (a.) 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.
Normal :: Normal (a.) A straight line or plane drawn from any point of a curve or surface so as to be perpendicular to the curve or surface at that point.
Cross :: Cross (n.) An instrument for laying of offsets perpendicular to the main course.
Obliquity :: Obliquity (n.) The condition of being oblique; deviation from a right line; deviation from parallelism or perpendicularity; the amount of such deviation; divergence; as, the obliquity of the ecliptic to the equator..
Paly :: Paly (a.) Divided into four or more equal parts by perpendicular lines, and of two different tinctures disposed alternately..
Stem :: Stem (n.) The short perpendicular line added to the body of a note; the tail of a crotchet, quaver, semiquaver, etc..
Column :: Column (n.) A perpendicular line of figures.
Wrench :: Wrench (v. t.) The system made up of a force and a couple of forces in a plane perpendicular to that force. Any number of forces acting at any points upon a rigid body may be compounded so as to be equivalent to a wrench.
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