1. a straight line at right angles to another line;

2. a Gothic style in 14th and 15th century England; characterized by vertical lines and a four-centered (Tudor) arch and fan vaulting;

[syn:

3. 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;

[syn: plumb line,

4. an extremely steep face;

1. intersecting at or forming right angles;

- Example: "the axes are perpendicular to each other"

2. at right angles to the plane of the horizon or a base line;

- Example: "a vertical camera angle"

- Example: "the monument consists of two vertical pillars supporting a horizontal slab"

- Example: "measure the perpendicular height"

[syn: vertical,

3. extremely steep;

- Example: "the great perpendicular face of the cliff"

The Collaborative International Dictionary of English v.0.48:

Perpendicular \Per`pen*dic"u*lar\, a. [L. perpendicularis, perpendicularius: cf. F. perpendiculaire. See Perpendicle, Pension.] 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. [1913 Webster] 2. (Geom.) At right angles to a given line or surface; as, the line ad is perpendicular to the line bc. [1913 Webster] 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. [1913 Webster]The Collaborative International Dictionary of English v.0.48:

Perpendicular \Per`pen*dic"u*lar\, n. 1. A line at right angles to the plane of the horizon; a vertical line or direction. [1913 Webster] 2. (Geom.) A line or plane falling at right angles on another line or surface, or making equal angles with it on each side. [1913 Webster]WordNet (r) 3.0 (2006):

perpendicular adj 1: intersecting at or forming right angles; "the axes are perpendicular to each other" [ant: oblique, parallel] 2: 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" [syn: vertical, perpendicular] [ant: horizontal, inclined] 3: extremely steep; "the great perpendicular face of the cliff" n 1: a straight line at right angles to another line 2: a Gothic style in 14th and 15th century England; characterized by vertical lines and a four-centered (Tudor) arch and fan vaulting [syn: perpendicular, perpendicular style, English-Gothic, English-Gothic architecture] 3: 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 [syn: plumb line, perpendicular] 4: an extremely steep faceMoby Thesaurus II by Grady Ward, 1.0:

49 Moby Thesaurus words for "perpendicular": 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, upright, vector, vertical, vertical circle