triangular

[trahy-ang-gyuh-ler]

adjective

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

2. having a triangle as base or cross section.

   a triangular prism.

3. comprising three parts or elements; triple.

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

triangular

/ traɪˌæŋɡjʊˈlærɪtɪ, traɪˈæŋɡjʊlə /

adjective

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

2. of or involving three participants, pieces, or units

3. maths having a base shaped like a triangle

Other Word Forms

• triangularity noun
• triangularly adverb
• subtriangular adjective
• subtriangularity noun

Word History and Origins

Origin of triangular¹

1535–45; < Latin triangulāris, equivalent to triangul ( um ) triangle + -āris -ar ¹

Example Sentences

The course began and ended at Palisades Village Green, a small triangular park in the middle of the downtown area.

Read more on Los Angeles Times

The shark’s skin, we are told, is covered with triangular “denticles” rather than scales—essentially modified teeth.

Read more on The Wall Street Journal

I taught them how to use rulers, compasses, protractors, and triangular scales.

Read more on Literature

Natural light filters through vast triangular windows, illuminating both colossal statues and delicate jewellery from Egypt's ancient civilisation.

Read more on Barron's

And when Roz looked up, she saw a white triangular airship floating above her.

Read more on Literature

Related Words

• trilateral