First Known Use: 14th century
Dictionary
triangular
adjective tri·an·gu·lar \trī-ˈaŋ-gyə-lər\
: shaped like a triangle
: involving three people, groups, or things
Full Definition of TRIANGULAR
1
a : 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>
2
a (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
— tri·an·gu·lar·i·ty \(ˌ)trī-ˌaŋ-gyə-ˈla-rə-tē\ noun
— tri·an·gu·lar·ly \trī-ˈaŋ-gyə-lər-lē\ adverb
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Origin of TRIANGULAR
Middle English trianguler, from Late Latin triangularis, from Latin triangulum
TRIANGULAR Defined for Kids
triangular
adjective tri·an·gu·lar \trī-ˈaŋ-gyə-lər\
Definition of TRIANGULAR for Kids
1
: having three angles, sides, or corners <a triangular sign>
2
: of, relating to, or involving three parts or persons
Medical Dictionary
triangular
noun tri·an·gu·lar \trī-ˈaŋ-gyə-lər\
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