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Adjective: perpendicular  ,pur-pun'di-kyû-lu(r)
  1. Intersecting at or forming right angles
    "the axes are perpendicular to each other"
     
  2. At right angles to the plane of the horizon or a base line
    "measure the perpendicular height";
    - vertical
     
  3. Extremely steep
    "the great perpendicular face of the cliff"
Noun: perpendicular  ,pur-pun'di-kyû-lu(r)
  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-centred (Tudor) arch and fan vaulting
    - perpendicular style, English-Gothic, English-Gothic architecture
     
  3. A cord from which a metal weight is suspended pointing directly to the earth's centre of gravity; used to determine the vertical from a given point
    - plumb line
     
  4. An extremely steep face

Derived forms: perpendiculars

See also: normal, orientation, orthogonal, plumb, rectangular, right, steep, straight, unsloped, upended, upright

Type of: cord, face, Gothic, Gothic architecture, straight line

Antonym: oblique, parallel

Encyclopedia: Perpendicular