triangular

[trahy-ang-gyuh-ler]

SEE MORE SYNONYMS FOR triangular ON THESAURUS.COM

adjective

pertaining to or having the form of a triangle; three-cornered.

having a triangle as base or cross section: a triangular prism.

comprising three parts or elements; triple.

pertaining to or involving a group of three, as three persons, parties, or things.

Origin of triangular

1535–45; < Latin triangulāris, equivalent to triangul(um) triangle + -āris -ar¹

Related formstri·an·gu·lar·i·ty

[trahy-ang-gyuh-lar-i-tee] /traɪˌæŋ gyəˈlær ɪ ti/, nountri·an·gu·lar·ly, adverbsub·tri·an·gu·lar, adjectivesub·tri·an·gu·lar·i·ty, noun

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Related Words for triangular

trilateral, cuneate, deltoid, deltoidal, hastate, pyramidal, pyriform, trigonal

Examples from the Web for triangular

Contemporary Examples of triangular

The dominant silhouette in the collection was an A-line, triangular shape with narrow shoulders and a full skirt.
Paris Fall Fashion Week Ends With Vuitton and Kanye
Robin Givhan
March 7, 2012
“Those pink, triangular houses are very much a symbol for strangeness,” said Pickwoad.
Gilding the Prisoner's Cage
Jace Lacob
November 14, 2009

Historical Examples of triangular

The lapels were, of course, soft-rolled and joined the collar with a triangular notch.
Ruggles of Red Gap
Harry Leon Wilson
Lay the slices one on the other, and cut in triangular shapes.
The Skilful Cook
Mary Harrison
Here is the famous "triangular bridge," a relic of the abbey.
England, Picturesque and Descriptive
Joel Cook
Then we could find nothing by traveling toward the triangular cluster?
Cogito, Ergo Sum
John Foster West
You look over the whole town, which here appears in a triangular form.
A Tour in Ireland
Arthur Young

British Dictionary definitions for triangular

triangular

adjective

Also: trigonal of, shaped like, or relating to a triangle; having three corners or sides

of or involving three participants, pieces, or units

maths having a base shaped like a triangle

Derived Formstriangularity (traɪˌæŋɡjʊˈlærɪtɪ), nountriangularly, adverb

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for triangular

adj.

1540s, from Late Latin triangularis, from triangulum (see triangle).