English Dictionary: perpendicular | by the DICT Development Group |
3 results for perpendicular | |
From WordNet (r) 3.0 (2006) [wn]: | |
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From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
Perpendicular \Per`pen*dic"u*lar\, 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. | |
From Webster's Revised Unabridged Dictionary (1913) [web1913]: | |
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. 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. |