triangular

[ trahy-ang-gyuh-ler ]
/ traɪˈæŋ gyə lər /

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

Examples from the Web for triangular

British Dictionary definitions for triangular

triangular

/ (traɪˈæŋɡjʊlə) /

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