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Adjective perpendicular has 3 senses
  1. perpendicular - intersecting at or forming right angles; "the axes are perpendicular to each other"
    oblique, bias, catacorner, cata-cornered, catercorner, cater-cornered, catty-corner, catty-cornered, kitty-corner, kitty-cornered, crabwise, sideways, diagonal, nonparallel, parallel, antiparallel, collateral, nonconvergent, nonintersecting
  2. vertical, perpendicular - 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"
  3. perpendicular - extremely steep; "the great perpendicular face of the cliff"
    gradual (indirect, via steep)
Noun perpendicular has 4 senses
  1. perpendicular - a straight line at right angles to another line
    --1 is a kind of
    straight line
  2. perpendicular, perpendicular style, English-Gothic, English-Gothic architecture - a Gothic style in 14th and 15th century England; characterized by vertical lines and a four-centered (Tudor) arch and fan vaulting
    --2 is a kind of Gothic, Gothic architecture
    --2 has particulars: Tudor architecture
  3. plumb line, perpendicular - 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
    --3 is a kind of cord
    --3 has parts: plumb bob, plumb, plummet
    --3 has particulars: lead line, sounding line; plumb rule
  4. perpendicular - an extremely steep face
    --4 is a kind of
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