Triangular

/traɪˈæŋɡjələr/

Meaning & Definition

adjective
shaped like a triangle; having three angles and three sides.
The architect designed a triangular roof for the new building.
pertaining to or involving triangles.
In mathematics, we often study triangular relationships in geometry.
characterized by three parts or elements.
The triangular trade involved three regions exchanging goods.

Etymology

Middle English, from Latin 'triangularis', from 'triangulus' meaning 'three-cornered'.

Common Phrases and Expressions

triangular trade
A historical term describing trade between three ports or regions, often involving the exchange of goods and slaves.
triangular number
A number that can form an equilateral triangle, represented by the formula n(n + 1)/2.
triangular relationship
A complex romantic relationship involving three people.

Related Words

triangle
A polygon with three edges and three vertices.
triad
A group of three.
trio
A group of three people or things.

Slang Meanings

Triangular relationship
He's in a triangular situation with two partners.
In the shape of a triangle
That pizza slice looks triangular!