triangular
adjective
tri·an·gu·lar
trī-ˈaŋ-gyə-lər 
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
Examples of triangular in a Sentence
Recent Examples on the Web
Its walls were white—the color of purity—and the interior was brightly illuminated by eight hundred triangular windows of translucent white glass.
—
D. T. Max, New Yorker, 15 Sep. 2025
Unlike your average tote, this bag is constructed with triangular folds that create more space for your stuff in the top.
—Nicol Natale, PEOPLE, 15 Sep. 2025
The triangular chain of reefs and rocks is coveted for its strategic location, bountiful fish stocks, and role as a sanctuary for boats during storms.
—Nectar Gan, CNN Money, 11 Sep. 2025
During the 30th and 31st March in 1990, hundreds of residents across the Wallonia region of Belgium witnessed a strange, triangular formation of lights moving across the night sky.
—Atharva Gosavi, Interesting Engineering, 3 Sep. 2025
See All Example Sentences for triangular
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D. T. Max, New Yorker, 15 Sep. 2025
Unlike your average tote, this bag is constructed with triangular folds that create more space for your stuff in the top.
—Nicol Natale, PEOPLE, 15 Sep. 2025
The triangular chain of reefs and rocks is coveted for its strategic location, bountiful fish stocks, and role as a sanctuary for boats during storms.
—Nectar Gan, CNN Money, 11 Sep. 2025
During the 30th and 31st March in 1990, hundreds of residents across the Wallonia region of Belgium witnessed a strange, triangular formation of lights moving across the night sky.
—Atharva Gosavi, Interesting Engineering, 3 Sep. 2025
See All Example Sentences for triangular
Cite this Entry
“Triangular.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/triangular. Accessed 26 Sep. 2025.
Copy CitationKids Definition
triangular
adjective
tri·an·gu·lar
trī-ˈaŋ-gyə-lər
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
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Merriam-Webster unabridged
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