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

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..
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..
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..
Orthogonally :: Orthogonally (adv.) Perpendicularly; at right angles; as, a curve cuts a set of curves orthogonally..
Bitts :: Bitts (n. pl.) A frame of two strong timbers fixed perpendicularly in the fore part of a ship, on which to fasten the cables as the ship rides at anchor, or in warping. Other bitts are used for belaying (belaying bitts), for sustaining the windlass (carrick bitts, winch bitts, or windlass bitts), to hold the pawls of the windlass (pawl bitts) etc..
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..
Cross-garnet :: Cross-garnet (n.) A hinge having one strap perpendicular and the other strap horizontal giving it the form of an Egyptian or T cross.
Upright :: Upright (a.) In an erect position or posture; perpendicular; vertical, or nearly vertical; pointing upward; as, an upright tree..
Rake :: Rake (v. i.) To incline from a perpendicular direction; as, a mast rakes aft..
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..
Scarp :: Scarp (v. t.) To cut down perpendicularly, or nearly so; as, to scarp the face of a ditch or a rock..
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.
Plump :: Plump (a. & v.) Directly; suddenly; perpendicularly.
Tail :: Tail (n.) The part of a note which runs perpendicularly upward or downward from the head; the stem.
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..
Hoist :: Hoist (n.) The perpendicular height of a flag, as opposed to the fly, or horizontal length when flying from a staff..
Perpendicularity :: Perpendicularity (n.) The quality or state of being perpendicular.
Drop :: Drop (v. i.) To be deep in extent; to descend perpendicularly; as, her main topsail drops seventeen yards..
Kathetal :: Kathetal (a.) Making a right angle; perpendicular, as two lines or two sides of a triangle, which include a right angle..
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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