triangular

adjective

tri·​an·​gu·​lar trī-ˈaŋ-gyə-lər How to pronounce triangular (audio)
1
a
: of, relating to, or having the form of a triangle
a triangular plot of land
b
: having a triangular base or principal surface
a triangular table
a triangular pyramid
2
a(1)
: of, relating to, or involving three elements
a triangular agreement
(2)
of a military group : based primarily on three units
b
: of or relating to a love triangle
triangularity noun
triangularly adverb

Examples of triangular in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Our 1959 article advised readers to arrange foliage in a triangular shape (for example, create two high points with greenery and one low point with flowers). Halee Miller Van Ryswyk, Better Homes & Gardens, 8 Oct. 2024 This is enlivened by triangular windows and the actual inside shape of the home is really eye-catching. Adam Williams, New Atlas, 14 Oct. 2024 The mission will deploy three spacecraft that will scour the universe, separated by about 1.5 million miles while flying in a triangular formation. Eric Lagatta, USA TODAY, 26 Oct. 2024 The outline of the triangular ribs of the building’s core can be seen from the ground looking up. Jessica Gelt, Los Angeles Times, 25 Oct. 2024 See all Example Sentences for triangular 

Word History

Etymology

Middle English trianguler, from Late Latin triangularis, from Latin triangulum

First Known Use

14th century, in the meaning defined at sense 1a

Time Traveler
The first known use of triangular was in the 14th century

Dictionary Entries Near triangular

Cite this Entry

“Triangular.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/triangular. Accessed 28 Nov. 2024.

Kids Definition

triangular

adjective
tri·​an·​gu·​lar trī-ˈaŋ-gyə-lər How to pronounce triangular (audio)
1
: of, relating to, or having the form of a triangle
2
: having a triangular base or principal surface
a triangular pyramid

Medical Definition

triangular

noun
tri·​an·​gu·​lar trī-ˈaŋ-gyə-lər How to pronounce triangular (audio)

More from Merriam-Webster on triangular

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