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

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Other Words from triangular

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

Examples of triangular in a Sentence

Recent Examples on the Web

The result had a stubbycircular face like that of a somewhat satanic Thomas the Tank Engine: flattened nose, square eye sockets with deep-set triangular eyes, a round, shouty mouth. Oliver Morton, WIRED, "The Beauty and Madness of Sending a Man to the Moon," 4 June 2019 Inside the arches, triangular Art Deco windows would point up in the direction Van Alen wanted the beholder’s eye to wander. Jonathan Schifman, Popular Mechanics, "A Friendship Turned to Rivalry. A Feud That Changed the New York Skyline.," 27 Mar. 2019 Begin a triangular fold by bringing the striped corner of the folded edge to the top edge. Caroline Picard, Good Housekeeping, "How to Fold an American Flag the Right Way," 14 May 2019 The high jewelry includes deliberately unmatched triangular earrings comprising sapphires, white diamonds, and a central yellow diamond; and a tanzanite ring sunk in a diamond star that desperately wants to come home with me. Lynn Yaeger, Vogue, "Nikos Koulis Shows His Exquisite High Jewelry to a Greek Port City," 2 May 2019 The lot, which was formerly a parking facility, is now home to two triangular buildings linked together by an intricate brick facade by Danish designer Petersen Tegl, wedging itself perfectly into this sliver of city space. Nicole Engelman, ELLE Decor, "The Most Beautiful Apartment on Earth Is in NYC and The Future Perfect Is Responsible," 29 Apr. 2019 The openness of the one-bedroom, one-bathroom dome and its triangular glass windows let in tons of natural light and has the kind of treetop views that seem made for Instagram. Elizabeth Gulino, House Beautiful, "The World’s Most-Visited Airbnb of All Time is A Mushroom Dome in California," 29 Mar. 2019 The British bayonets were triangular in shape, ensuring that even if the 18-inch blade did not puncture a vital organ, at least one facet of the weapon would always be slicing near a heart, a kidney, a liver. Peter Cozzens, WSJ, "‘Valley Forge’ Review: In the Bleak Midwinter," 21 Dec. 2018 The rings are triangular in shape with rounded sides and have a loop at the top and measure 8½ inches high by 6½ inches wide. Timothy Dahl, Popular Mechanics, "Recall Alert: Rainbow Playset Trapeze Rings," 8 Apr. 2016

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.

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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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Statistics for triangular

Last Updated

7 Jun 2019

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Time Traveler for triangular

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

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English Language Learners Definition of triangular

: shaped like a triangle
: involving three people, groups, or things


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

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More from Merriam-Webster on triangular

Spanish Central: Translation of triangular

Nglish: Translation of triangular for Spanish Speakers

Britannica English: Translation of triangular for Arabic Speakers

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