triangular — English Dictionary

Adjective

1. Shaped like a triangle.

   Synonyms

   leg-of-mutton

   Examples

   More examples (1)

   A very neat old woman, still in her good outdoor coat and best beehive hat, was sitting at a polished mahogany table on whose surface there were several scored scratches so deep that a triangular piece of the veneer had come cleanly away,[…].

2. Of, or pertaining to, triangles.

3. Having a triangle as a base; as, a triangular prism, a triangular pyramid.

4. Having three elements or parties; trilateral, tripartite.

Adjective

1. having three angles; forming or shaped like a triangle

   Examples

   a triangular figure

   a triangular pyramid has a triangle for a base

2. having three sides

   Synonyms

   trilateralthree-sided

   Examples

   a trilateral figure