triangular
1. having three angles; forming or shaped like a triangle (Freq. 1) - a triangular figure - a triangular pyrimid has a triangle for a base • Similar to: angular, angulate • Derivationally related forms: triangle, triangularity 2. having three sides - a trilateral figure • Syn: trilateral, three-sided • Similar to: multilateral, many-sided • Derivationally related forms: triangle, triangularity
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