Definify.com

Webster 1913 Edition


Perpendicular

Perˊpen-dic′u-lar

,
Adj.
[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.

Perˊpen-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.

Webster 1828 Edition


Perpendicular

PERPENDIC'ULAR

,
Adj.
[L. perpendicularis, from perpendiculum, a plumb line; perpendeo; per and pendeo, to hang.]
1.
Hanging or extending in a right line from any point towards the center of the earth or of gravity, or at right angles with the plane of the horizon.
2.
In geometry, falling directly on another line at right angles. The line A is perpendicular to the line B.

PERPENDIC'ULAR

,
Noun.
A line falling at right angles on the plane of the horizon,that is, extending from some point in a right line towards the center of the earth or center of gravity, or any body standing in that direction.
1.
In geometry, a line falling at right angles on another line, or making equal angles with it on each side.

Definition 2024


Perpendicular

Perpendicular

See also: perpendicular

English

Adjective

Perpendicular (comparative more Perpendicular, superlative most Perpendicular)

  1. (architecture) Of a style of English Gothic architecture from the fourteenth and fifteenth centuries.

perpendicular

perpendicular

See also: Perpendicular

English

Adjective

perpendicular (comparative more perpendicular, superlative most perpendicular)

  1. (geometry) At or forming a right angle (to).
    • 2012 March 1, Henry Petroski, “Opening Doors”, in American Scientist, volume 100, number 2, page 112-3:
      A doorknob of whatever roundish shape is effectively a continuum of levers, with the axis of the latching mechanismknown as the spindlebeing the fulcrum about which the turning takes place. Applying a force tangential to the knob is essentially equivalent to applying one perpendicular to a radial line defining the lever.
    In most houses, the walls are perpendicular to the floor.

Synonyms

Translations

Noun

perpendicular (plural perpendiculars)

  1. (geometry) A line or plane that is perpendicular to another.
  2. A device such as a plumb line that is used in making or marking a perpendicular line.

Translations


Portuguese

Etymology

From Late Latin perpendiculāris, from perpendiculum.

Pronunciation

  • (Portugal) IPA(key): /pɨɾ.pẽ.di.ku.ˈlaɾ/
  • Hyphenation: per‧pen‧di‧cu‧lar

Adjective

perpendicular (plural perpendiculares, comparable)

  1. perpendicular

Noun

perpendicular f (plural perpendiculares)

  1. perpendicular

Derived terms


Spanish

Etymology

From Late Latin perpendiculāris, from perpendiculum.

Adjective

perpendicular m, f (plural perpendiculares)

  1. perpendicular

Derived terms