Definition of perpendicular

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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.

Lern More About Perpendicular

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..
Mural :: Mural (a.) Resembling a wall; perpendicular or steep; as, a mural precipice..
Shear :: Shear (v. t.) A strain, or change of shape, of an elastic body, consisting of an extension in one direction, an equal compression in a perpendicular direction, with an unchanged magnitude in the third direction..
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..
Twibil :: Twibil (n.) A kind of mattock, or ax; esp., a tool like a pickax, but having, instead of the points, flat terminations, one of which is parallel to the handle, the other perpendicular to it..
Elevation :: Elevation (n.) A geometrical projection of a building, or other object, on a plane perpendicular to the horizon; orthographic projection on a vertical plane; -- called by the ancients the orthography..
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.
Tail :: Tail (n.) The part of a note which runs perpendicularly upward or downward from the head; the stem.
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..
Apothem :: Apothem (n.) The perpendicular from the center to one of the sides of a regular polygon.
Normal :: Normal (a.) Any perpendicular.
Perpendicular :: Perpendicular (a.) At right angles to a given line or surface; as, the line ad is perpendicular to the line bc..
Upright :: Upright (a.) In an erect position or posture; perpendicular; vertical, or nearly vertical; pointing upward; as, an upright tree..
Oblique :: Oblique (v. i.) To deviate from a perpendicular line; to move in an oblique direction.
Cathetometer :: Cathetometer (n.) An instrument for the accurate measurement of small differences of height; esp. of the differences in the height of the upper surfaces of two columns of mercury or other fluid, or of the same column at different times. It consists of a telescopic leveling apparatus (d), which slides up or down a perpendicular metallic standard very finely graduated (bb). The telescope is raised or depressed in order to sight the objects or surfaces, and the differences in vertical height are th
Inclined :: Inclined (p. p. & a.) Bent out of a perpendicular position, or into a curve with the convex side uppermost..
Deep :: Deep (superl.) Extending far below the surface; of great perpendicular dimension (measured from the surface downward, and distinguished from high, which is measured upward); far to the bottom; having a certain depth; as, a deep sea..
Vertical :: Vertical (a.) Perpendicular to the plane of the horizon; upright; plumb; as, a vertical line..
Shaft :: Shaft (n.) A well-like excavation in the earth, perpendicular or nearly so, made for reaching and raising ore, for raising water, etc..
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