Triangle definition

trīănggəl
Frequency:
A geometric figure having three angles and three sides.
noun
26
8
Any three-sided or three-cornered figure, area, object, part, etc.
noun
22
8
A situation involving three persons, esp. when one person is having love affairs with two others.
noun
14
8
Any of various flat, three-sided drawing and drafting guides, used especially to draw straight lines at specific angles.
noun
15
12
The definition of a triangle is a shape with three angles and three sides.

An example of something in the shape of a triangle is a piece of pizza.

noun
3
0
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A closed geometric figure consisting of three sides.
4
3
A love triangle.
noun
1
0
A right-angled, flat, triangular instrument used in drawing geometric figures.
noun
4
4
(cue sports) A triangular shaped piece of equipment used for gathering the balls into the formation required by the game being played.
noun
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0
(systemics) The structure of systems composed with three interrelated objects.
noun
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0
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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.

pronoun
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0
A musical percussion instrument consisting of a steel rod bent into a triangle with one angle open: it produces a high-pitched, tinkling sound when struck with a short steel rod.
noun
3
4
(music) A percussion instrument consisting of a piece of metal in the shape of a triangle open at one angle.
noun
2
3
A relationship involving three people, especially a ménage à trois.
noun
0
1
The plane figure formed by connecting three points not in a straight line by straight line segments; a three-sided polygon.
noun
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1
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Something shaped like such a figure.

A triangle of land.

noun
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1
A technical chart pattern in which the price range becomes increasingly narrow over time with lower daily prices or higher daily prices. An ascending triangle occurs when the highest prices on the chart pattern rise more while a descending triangle occurs when the lowest prices on the bottom of the chart pattern increase more.
0
1
(geometry) A polygon with three sides and three angles.
noun
0
1
(music) A percussion instrument made by forming a metal rod into a triangular shape which is open at one angle. It is suspended from a string and hit with a metal bar to make a resonant sound.
noun
0
1

Other Word Forms

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