Definition of perpendicular

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

Lern More About Perpendicular

Trip :: Trip (v. t.) To pull (a yard) into a perpendicular position for lowering it.
Mural :: Mural (a.) Resembling a wall; perpendicular or steep; as, a mural precipice..
Altitude :: Altitude (n.) The perpendicular distance from the base of a figure to the summit, or to the side parallel to the base; as, the altitude of a triangle, pyramid, parallelogram, frustum, etc..
Inclined :: Inclined (p. p. & a.) Bent out of a perpendicular position, or into a curve with the convex side uppermost..
Downright :: Downright (adv.) Straight down; perpendicularly.
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..
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..
Perpendicularity :: Perpendicularity (n.) The quality or state of being perpendicular.
Hoist :: Hoist (n.) The perpendicular height of a flag, as opposed to the fly, or horizontal length when flying from a staff..
Paly :: Paly (a.) Divided into four or more equal parts by perpendicular lines, and of two different tinctures disposed alternately..
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..
Palewise :: Palewise (adv.) In the manner of a pale or pales; by perpendicular lines or divisions; as, to divide an escutcheon palewise..
Triglyph :: Triglyph (n.) An ornament in the frieze of the Doric order, repeated at equal intervals. Each triglyph consists of a rectangular tablet, slightly projecting, and divided nearly to the top by two parallel and perpendicular gutters, or channels, called glyphs, into three parts, or spaces, called femora. A half channel, or glyph, is also cut upon each of the perpendicular edges of the tablet. See Illust. of Entablature..
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.
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..
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..
Scarp :: Scarp (v. t.) To cut down perpendicularly, or nearly so; as, to scarp the face of a ditch or a rock..
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..
Crotchet :: Crotchet (n.) The arrangement of a body of troops, either forward or rearward, so as to form a line nearly perpendicular to the general line of battle..
Underlayer :: Underlayer (n.) A perpendicular shaft sunk to cut the lode at any required depth.
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