- of or shaped like a triangle; three-cornered
- of or involving three persons, factions, units, or parts
- having bases that are triangles, as a prism
Origin of triangularLate Latin triangularis
- Of, relating to, or shaped like a triangle.
- Having a triangle for a base: a triangular pyramid.
- Relating to or involving three entities, such as three people, objects, or ideas.
(comparative more triangular, superlative most triangular)