Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of perpendicular is as below...

Problem :: Problem (n.) Anything which is required to be done; as, in geometry, to bisect a line, to draw a perpendicular; or, in algebra, to find an unknown quantity..

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

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..

Reclining :: Reclining (a.) Bending or curving gradually back from the perpendicular.

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.) According to a square or rule; perpendicular; forming a right angle. Specifically: Of or pertaining to a normal.

Apothem :: Apothem (n.) The perpendicular from the center to one of the sides of a regular polygon.

Plumb :: Plumb (adv.) In a plumb direction; perpendicularly.

Level :: Level (n.) A line or surface to which, at every point, a vertical or plumb line is perpendicular; a line or surface which is everywhere parallel to the surface of still water; -- this is the true level, and is a curve or surface in which all points are equally distant from the center of the earth, or rather would be so if the earth were an exact sphere..

Paly :: Paly (a.) Divided into four or more equal parts by perpendicular lines, and of two different tinctures disposed alternately..

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..

Orthocenter :: Orthocenter (n.) That point in which the three perpendiculars let fall from the angles of a triangle upon the opposite sides, or the sides produced, mutually intersect..

Altitude :: Altitude (n.) Space extended upward; height; the perpendicular elevation of an object above its foundation, above the ground, or above a given level, or of one object above another; as, the altitude of a mountain, or of a bird above the top of a tree..

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.

Hoist :: Hoist (n.) The perpendicular height of a flag, as opposed to the fly, or horizontal length when flying from a staff..

Chesstree :: Chesstree (n.) A piece of oak bolted perpendicularly on the side of a vessel, to aid in drawing down and securing the clew of the mainsail..

Subsulphate :: Substyle (n.) A right line on which the style, or gnomon, of a dial is erected; being the common section of the face of the dial and a plane perpendicular to it passing through the style..

Column :: Column (n.) A perpendicular line of figures.

Table :: Table (n.) A plane surface, supposed to be transparent and perpendicular to the horizon; -- called also perspective plane..

Plumb :: Plumb (v. t.) To adjust by a plumb line; to cause to be perpendicular; as, to plumb a building or a wall..

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