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 Meaning of TRIANGULAR
| Pronunciation: |  | trI'anggyulur 
 
 |  |  WordNet Dictionary |  |  |  |  | Definition: |  | 
[adj]  having three sides; "a trilateral figure"  [adj]  involving three parties or elements; "the triangular mother-father-child relationship"; "a trilateral agreement"; "a tripartite treaty"; "a tripartite division"; "a three-way playoff"  [adj]  having three angles; forming or shaped like a triangle; "a triangular figure"; "a triangular pyrimid has a triangle for a base"   |  |  |  |  | Websites: |  |  |  |  |  |  | Synonyms: |  | angular, angulate, many-sided, multilateral, three-party, three-sided, three-way, trilateral, tripartite |  |  |  |     |  |  Webster's 1913 Dictionary |  |  |  |  | Definition: |  | \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["o]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}.
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