Triangle Definition

trīănggəl
triangles
noun
triangles
A geometric figure having three angles and three sides.
Webster's New World
Any three-sided or three-cornered figure, area, object, part, etc.
Webster's New World
Something shaped like such a figure.
A triangle of land.
American Heritage
A right-angled, flat, triangular instrument used in drawing geometric figures.
Webster's New World
A situation involving three persons, esp. when one person is having love affairs with two others.
Webster's New World
pronoun

The area comprising the cities of Raleigh, Durham and Chapel Hill in North Carolina. Used with "the" except when attributive.

I moved to the Triangle two years ago.
Many Triangle residents enjoy iced tea.
Wiktionary

Other Word Forms of Triangle

Noun

Singular:
triangle
Plural:
triangles

Origin of Triangle

  • Middle English from Old French from Latin triangulum from neuter of triangulus three-angled tri- tri- angulus angle

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Old French triangle.

    From Wiktionary

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