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triangular
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English Dictionary: triangular by the DICT Development Group
3 results for triangular
From WordNet (r) 3.0 (2006) [wn]:
triangular
adj
  1. having three angles; forming or shaped like a triangle; "a triangular figure"; "a triangular pyrimid has a triangle for a base"
  2. having three sides; "a trilateral figure"
    Synonym(s): trilateral, triangular, three-sided
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
   Triangular \Tri*an"gu*lar\, a. [L. triangularis: cf. F.
      triangulaire.]
      1. Having three angles; having the form of a triangle.
  
      2. (Bot.) Oblong or elongated, and having three lateral
            angles; as, a triangular seed, leaf, or stem.
  
      {Triangular compasses}, compasses with three legs for taking
            off the angular points of a triangle, or any three points
            at the same time.
  
      {Triangular crab} (Zo[94]l.), any maioid crab; -- so called
            because the carapace is usually triangular.
  
      {Triangular numbers} (Math.), the series of numbers formed by
            the successive sums of the terms of an arithmetical
            progression, of which the first term and the common
            difference are 1. See {Figurate numbers}, under
            {Figurate}.

From Webster's Revised Unabridged Dictionary (1913) [web1913]:
   Compasses \Com"pass*es\, n., pl.
      An instrument for describing circles, measuring figures,
      etc., consisting of two, or (rarely) more, pointed branches,
      or legs, usually joined at the top by a rivet on which they
      move.
  
      Note: The compasses for drawing circles have adjustable pen
               points, pencil points, etc.; those used for measuring
               without adjustable points are generally called
               dividers. See {Dividers}.
  
      {Bow compasses}. See {Bow-compass}.
  
      {Caliber compasses}, {Caliper compasses}. See {Calipers}.
  
      {Proportional}, {Triangular}, etc., {compasses}. See under
            {Proportional}, etc.
No guarantee of accuracy or completeness!
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