1. 
   equilateral triangle
   [n] - a three-sided regular polygon
   Found op http://www.webdictionary.co.uk/definition.php?query=equilateral%20triangle
   
   
2. 
   Equilateral Triangle
   A triangle with three equal sides. See also: Triangle.
   Found op http://www.diracdelta.co.uk/science/source/e/q/equilateral%20triangle/sourc
   
   
3. 
   equilateral triangle
   A triangle with three congruent sides
   Example:
   
   Found op http://www.hbschool.com/glossary/math2/index6.html
   
   
4. 
   equilateral triangle
   equiangular triangle noun a three-sided regular polygon
   Found op http://wordnetweb.princeton.edu/perl/webwn?s=equilateral%20triangle
   
   

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