Word:

Perpendicular

Per`pen`dic´u`lar
a.1.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.
2.(Geom.) At right angles to a given line or surface; as, the line ad is perpendicular to the line bc.
Perpendicular style
(Arch.) a name given to the latest variety of English Gothic architecture, which prevailed from the close of the 14th century to the early part of the 16th; - probably so called from the vertical style of its window mullions.
n.1.A line at right angles to the plane of the horizon; a vertical line or direction.
2.(Geom.) A line or plane falling at right angles on another line or surface, or making equal angles with it on each side.
Noun1.Perpendicularperpendicular - a straight line at right angles to another line
2.Perpendicularperpendicular - a Gothic style in 14th and 15th century England; characterized by vertical lines and a four-centered (Tudor) arch and fan vaulting
3.Perpendicularperpendicular - a cord from which a metal weight is suspended pointing directly to the earth's center of gravity; used to determine the vertical from a given point
Synonyms: plumb line
4.perpendicular - an extremely steep face
Adj.1.perpendicular - intersecting at or forming right angles; "the axes are perpendicular to each other"
Antonyms:
oblique - slanting or inclined in direction or course or position--neither parallel nor perpendicular nor right-angular; "the oblique rays of the winter sun"; "acute and obtuse angles are oblique angles"; "the axis of an oblique cone is not perpendicular to its base"
parallel - being everywhere equidistant and not intersecting; "parallel lines never converge"; "concentric circles are parallel"; "dancers in two parallel rows"
2.perpendicular - at right angles to the plane of the horizon or a base line; "a vertical camera angle"; "the monument consists of two vertical pillars supporting a horizontal slab"; "measure the perpendicular height"
Synonyms: vertical
3.perpendicular - extremely steep; "the great perpendicular face of the cliff"
air line, axis, azimuth circle, beeline, chord, diagonal, diameter, direct line, directrix, edge, erect, great-circle course, normal, orthodiagonal, orthogonal, orthometric, plumb, plunging, precipitous, radius, radius vector, rectangular, right angle, right line, right-angle, right-angled, right-angular, secant, segment, sheer, shortcut, side, stand-up, steep, straight, straight course, straight line, straight stretch, straight-up, straight-up-and-down, straightaway, streamline, tangent, transversal, up-and-down, vector, vertical, vertical circle
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-- Perpendicular --
perpendicular style
Perpendicularity
Perpendicularly
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Perpensity
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