English

Definition of isosceles triangle noun from the Oxford Advanced Learner's Dictionary

 

isosceles triangle

 noun
noun
BrE BrE//ˌsɒsəliːz ˈtraɪæŋɡl//
 
; NAmE NAmE//ˌsɑːsəliːz ˈtraɪæŋɡl//
 
(geometry)
 
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a triangle with two of its three sides the same length
See the Oxford Advanced American Dictionary entry: isosceles triangle