perpendicular

3 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

Perpendicular \Per'pen*dic"u*lar\, noun

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 The Collaborative International Dictionary of English v.0.48 [gcide]:

Perpendicular \Per'pen*dic"u*lar\, adjective [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.

From WordNet (r) 3.0 (2006) [wn]:

perpendicular

adjective

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"

noun

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 face


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