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

Mural :: Mural (a.) Resembling a wall; perpendicular or steep; as, a mural precipice..
Over :: Over (prep.) Above the perpendicular height or length of, with an idea of measurement; as, the water, or the depth of water, was over his head, over his shoes..
Breve :: Breve (n.) A note or character of time, equivalent to two semibreves or four minims. When dotted, it is equal to three semibreves. It was formerly of a square figure (as thus: / ), but is now made oval, with a line perpendicular to the staff on each of its sides; -- formerly much used for choir service..
Curtate :: Curtate (a.) Shortened or reduced; -- said of the distance of a planet from the sun or earth, as measured in the plane of the ecliptic, or the distance from the sun or earth to that point where a perpendicular, let fall from the planet upon the plane of the ecliptic, meets the ecliptic..
Wall-sided :: Wall-sided (a.) Having sides nearly perpendicular; -- said of certain vessels to distinguish them from those having flaring sides, or sides tumbling home (see under Tumble, v. i.)..
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..
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..
Plumb :: Plumb (v. t.) To adjust by a plumb line; to cause to be perpendicular; as, to plumb a building or a wall..
Scarp :: Scarp (v. t.) To cut down perpendicularly, or nearly so; as, to scarp the face of a ditch or a rock..
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..
Normal :: Normal (a.) According to a square or rule; perpendicular; forming a right angle. Specifically: Of or pertaining to a normal.
Column :: Column (n.) A perpendicular line of figures.
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
Pole :: Pole (n.) A point upon the surface of a sphere equally distant from every part of the circumference of a great circle; or the point in which a diameter of the sphere perpendicular to the plane of such circle meets the surface. Such a point is called the pole of that circle; as, the pole of the horizon; the pole of the ecliptic; the pole of a given meridian..
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..
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.
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.
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..
Kathetal :: Kathetal (a.) Making a right angle; perpendicular, as two lines or two sides of a triangle, which include a right angle..
Gnomon :: Gnomon (n.) A style or column erected perpendicularly to the horizon, formerly used in astronomocal observations. Its principal use was to find the altitude of the sun by measuring the length of its shadow..
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