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

Definition of triangular

1a : 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
2a(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

Other Words from triangular

triangularity \ (ˌ)trī-​ˌaŋ-​gyə-​ˈler-​ə-​tē How to pronounce triangular (audio) , -​ˈla-​rə-​tē \ noun
triangularly \ trī-​ˈaŋ-​gyə-​lər-​lē How to pronounce triangular (audio) \ adverb

Examples of triangular in a Sentence

Recent Examples on the Web At the base, a fan-column structure and triangular bracing essentially lift the building off the ground by about 80 feet to extend the viewpoint from the Park Avenue entrance through to Madison Avenue. Rachel Cormack, Robb Report, 15 Apr. 2022 With its sharp nose and triangular shape, the new observatory looks a little like a Star Destroyer from George Lucas’ imagination. Adam Mann, The Christian Science Monitor, 15 Dec. 2021 To alleviate back and lower-body pain, the Noble triangular pillow goes between your legs (for side sleepers) or under them (for back sleepers) to keep you aligned. Lexie Sachs, Good Housekeeping, 17 May 2021 The name comes from the downtown triangular areas the project covers, one bordered by 16th Street, Commercial Street and National Avenue and the other bordered by 17th Street, Logan Avenue and Commercial Street. Gary Warth, San Diego Union-Tribune, 13 Mar. 2022 The previous concept's mesh grille is swapped out for a body-color panel bracketed by light bars arranged in a triangular shape, while the lower front fascia now incorporates wider mesh intakes. Joey Capparella, Car and Driver, 13 Apr. 2022 Thousands of Chinese miners shopped and socialized here, and hundreds of Chinese lived on the block-long, triangular parcel, across the street from the still-standing City Hall and below Britt Gardens. The Oregonian/oregonlive, oregonlive, 1 Feb. 2022 In order to create versatility, watchmakers had to develop a spring and integrate the time setting on the side to avoid distorting the triangular domino-effect design. Paige Reddinger, Robb Report, 30 Mar. 2022 The five-spoke wheels on this prototype have an interesting triangular design, and the slim headlights and taillights look similar to the C-class sedan's. Joey Capparella, Car and Driver, 29 Mar. 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'triangular.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of triangular

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

History and Etymology for triangular

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

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Time Traveler for triangular

Time Traveler

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

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Dictionary Entries Near triangular

triangle spider


triangular compass

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Last Updated

12 May 2022

Cite this Entry

“Triangular.” Dictionary, Merriam-Webster, Accessed 23 May. 2022.

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More Definitions for triangular


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

Kids Definition of triangular

1 : having three angles, sides, or corners a triangular sign
2 : of, relating to, or involving three parts or persons


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

Medical Definition of triangular

More from Merriam-Webster on triangular

Nglish: Translation of triangular for Spanish Speakers

Britannica English: Translation of triangular for Arabic Speakers


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