# triangle

Also found in: Thesaurus, Medical, Financial, Idioms, Encyclopedia, Wikipedia.

## tri·an·gle

(trī′ăng′gəl)*n.*

**1.**

**a.**The plane figure formed by connecting three points not in a straight line by straight line segments; a three-sided polygon.

**b.**Something shaped like such a figure: a triangle of land.

**2.**Any of various flat, three-sided drawing and drafting guides, used especially to draw straight lines at specific angles.

**3.**

*Music*A percussion instrument consisting of a piece of metal in the shape of a triangle open at one angle.

**4.**A relationship involving three people, especially a ménage à trois.

[Middle English, from Old French, from Latin triangulum, from neuter of triangulus,

*three-angled*: tri-,*tri-*+ angulus,*angle*.]## triangle

(ˈtraɪˌæŋɡəl)*n*

**1.**(Mathematics)

*geometry*a three-sided polygon that can be classified by angle, as in an acute triangle, or by side, as in an equilateral triangle. Sum of interior angles: 180°; area: base × height

**2.**any object shaped like a triangle

**3.**any situation involving three parties or points of view. See also eternal triangle

**4.**(Instruments)

*music*a percussion instrument consisting of a sonorous metal bar bent into a triangular shape, beaten with a metal stick

**5.**a group of three

[C14: from Latin

*triangulum*(noun), from*triangulus*(adjective), from tri- +*angulus*corner]**ˈtriˌangled**

*adj*

## tri•an•gle

art at tribrach

(ˈtraɪˌæŋ gəl) *n.*

**1.**a closed plane figure having three sides and three angles.

**2.**a flat triangular piece with straight edges, used in connection with a T square for drawing perpendicular lines, geometric figures, etc.

**3.**any three-cornered or three-sided figure, object, or piece: a triangle of land.

**4.**a musical percussion instrument that consists of a steel triangle, open at one corner, that is struck with a steel rod.

**5.**a group of three; triad.

**6.**a situation involving three persons, esp. one in which two of them are in love with the third.

[1350–1400; Middle English < Latin

*triangulum,*n. use of neuter of*triangulus*three-cornered. See tri-, angle^{1}]**tri′an`gled,**

*adj.*

## tri·an·gle

(trī′ăng′gəl) A closed geometric figure consisting of three sides.

## Triangle

a set of three.*Example*: long wavering triangle of waterfowl, 1895.

ThesaurusAntonymsRelated WordsSynonyms

**Legend:**Switch to new thesaurus

Noun | 1. | triangle - a three-sided polygon polygon, polygonal shape - a closed plane figure bounded by straight sides acute triangle, acute-angled triangle - a triangle whose interior angles are all acute equiangular triangle, equilateral triangle - a three-sided regular polygon isosceles triangle - a triangle with two equal sides oblique triangle - a triangle that contains no right angle obtuse triangle, obtuse-angled triangle - a triangle that contains an obtuse interior angle right triangle, right-angled triangle - a triangle with one right angle scalene triangle - a triangle with no two sides of equal length |

2. | triangle - something approximating the shape of a triangle; "the coastline of Chile and Argentina and Brazil forms two legs of a triangle" | |

3. | Triangle - a small northern constellation near Perseus between Andromeda and Aries | |

4. | triangle - any of various triangular drafting instruments used to draw straight lines at specified anglesdrafting instrument - an instrument used by a draftsman in making drawings | |

5. | triangle - a percussion instrument consisting of a metal bar bent in the shape of an open trianglepercussion instrument, percussive instrument - a musical instrument in which the sound is produced by one object striking another |

Translations

مُثَلَّث

**مُثَلَّث موسيقي****triangl**

**trojúhelník**

**trekant**

**triangel**

**triangulo**

**kolmio**

**triangeli**

**trokut**

**triangl**

**háromszög**

**triangulum**

**òríhorn**

**òríhyrningur**

**þríhorn**

**þríhyrningur**

**トライアングル**

**三角形**

**삼각형**

**트라이앵글**

**triangulum**

**trikampis**

**trijstūris**

**triangel**

**trikotnik**

**triangel**

**triangel**

**trehörning**

**trekant**

**กิ๋ง เครื่องดนตรีรูปสามเหลี่ยม**

**สามเหลี่ยม**

**hình tam giác**

**kẻng ba gốc**

## triangle

*n*→ Dreieck

*nt*; (= set square) → (Zeichen)dreieck

*nt*; (Mus) → Triangel

*m*; (

*fig*: = relationship) → Dreiecksbeziehung

*f*

## triangle

(ˈtraiӕŋgl)*noun*

**1.**a two-dimensional figure with three sides and three angles.

**2.**a musical instrument consisting of a triangular metal bar that is struck with a small hammer.

**triˈangular**(-gju-)

*adjective*

in the shape of a triangle. a triangular road-sign; It is triangular in shape.

## triangle

→ مُثَلَّث triangl, trojúhelník trekant, triangel Dreieck, Triangel τρίγωνο triángulo kolmio, triangeli triangle triangl, trokut triangolo トライアングル, 三角形 삼각형, 트라이앵글 driehoek, triangel trekant, triangel trójkąt triângulo треугольник triangel กิ๋ง เครื่องดนตรีรูปสามเหลี่ยม, สามเหลี่ยม üçgen hình tam giác, kẻng ba gốc 三角, 三角铁## tri·an·gle

*n.*triángulo.

Want to thank TFD for its existence? Tell a friend about us, add a link to this page, or visit the webmaster's page for free fun content.

Link to this page: