Definition of perpendicular

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

Lern More About Perpendicular

Scarp :: Scarp (v. t.) To cut down perpendicularly, or nearly so; as, to scarp the face of a ditch or a rock..
Kilting :: Kilting (n.) A perpendicular arrangement of flat, single plaits, each plait being folded so as to cover half the breadth of the preceding one..
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..
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..
Vane :: Vane (n.) A contrivance attached to some elevated object for the purpose of showing which way the wind blows; a weathercock. It is usually a plate or strip of metal, or slip of wood, often cut into some fanciful form, and placed upon a perpendicular axis around which it moves freely..
Kathetal :: Kathetal (a.) Making a right angle; perpendicular, as two lines or two sides of a triangle, which include a right angle..
Palewise :: Palewise (adv.) In the manner of a pale or pales; by perpendicular lines or divisions; as, to divide an escutcheon palewise..
Apothem :: Apothem (n.) The perpendicular from the center to one of the sides of a regular polygon.
Orthognathous :: Orthognathous (a.) Having the front of the head, or the skull, nearly perpendicular, not retreating backwards above the jaws; -- opposed to prognathous. See Gnathic index, under Gnathic..
Bowline :: Bowline (n.) A rope fastened near the middle of the leech or perpendicular edge of the square sails, by subordinate ropes, called bridles, and used to keep the weather edge of the sail tight forward, when the ship is closehauled..
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.
Canton :: Canton (n.) A division of a shield occupying one third part of the chief, usually on the dexter side, formed by a perpendicular line from the top of the shield, meeting a horizontal line from the side..
Vertical :: Vertical (a.) Perpendicular to the plane of the horizon; upright; plumb; as, a vertical line..
Zone :: Zone (n.) The portion of the surface of a sphere included between two parallel planes; the portion of a surface of revolution included between two planes perpendicular to the axis.
Plumb :: Plumb (v. t.) To adjust by a plumb line; to cause to be perpendicular; as, to plumb a building or a wall..
Depth :: Depth (n.) The quality of being deep; deepness; perpendicular measurement downward from the surface, or horizontal measurement backward from the front; as, the depth of a river; the depth of a body of troops..
Palet :: Palet (n.) A perpendicular band upon an escutcheon, one half the breadth of the pale..
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..
Upright :: Upright (a.) In an erect position or posture; perpendicular; vertical, or nearly vertical; pointing upward; as, an upright tree..
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
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