perpendiculars
plural of perpendicular
Source: Wiktionary
Per`pen*dic"u*lar, a. Etym: [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.)
Definition: 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.
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.)
Definition: A line or plane falling at right angles on another line or surface, or making equal angles with it on each side.
Source: Webster’s Unabridged Dictionary 1913 Edition
7 November 2024
(verb) remove by or as if by rubbing or erasing; “Please erase the formula on the blackboard--it is wrong!”
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