# Definitions for Triangleˈtraɪˌæŋ gəltri·an·gle

### Princeton's WordNetRate this definition:2.0 / 1 vote

1. triangle, trigon, trilateralnoun

a three-sided polygon

2. trianglenoun

something approximating the shape of a triangle

"the coastline of Chile and Argentina and Brazil forms two legs of a triangle"

3. Triangulum, Trianglenoun

a small northern constellation near Perseus between Andromeda and Aries

4. trianglenoun

any of various triangular drafting instruments used to draw straight lines at specified angles

5. trianglenoun

a percussion instrument consisting of a metal bar bent in the shape of an open triangle

### WiktionaryRate this definition:0.0 / 0 votes

1. trianglenoun

A polygon with three sides and three angles.

2. trianglenoun

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.

3. trianglenoun

A triangular shaped piece of equipment used for gathering the balls into the formation required by the game being played.

4. trianglenoun

A love triangle.

5. trianglenoun

The structure of systems composed with three interrelated objects.

6. Trianglenoun

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

7. Etymology: From triangle.

### Samuel Johnson's DictionaryRate this definition:0.0 / 0 votes

1. TRIANGLEnoun

A figure of three angles.

Etymology: triangle, Fr. triangulum, Lat.

The three angles of a triangle are equal to two right ones. John Locke.

### WikipediaRate this definition:0.0 / 0 votes

1. Triangle

A triangle is a polygon with three edges and three vertices. It is one of the basic shapes in geometry. A triangle with vertices A, B, and C is denoted △ A B C {\displaystyle \triangle ABC} . In Euclidean geometry, any three points, when non-collinear, determine a unique triangle and simultaneously, a unique plane (i.e. a two-dimensional Euclidean space). In other words, there is only one plane that contains that triangle, and every triangle is contained in some plane. If the entire geometry is only the Euclidean plane, there is only one plane and all triangles are contained in it; however, in higher-dimensional Euclidean spaces, this is no longer true. This article is about triangles in Euclidean geometry, and in particular, the Euclidean plane, except where otherwise noted.

### ChatGPTRate this definition:0.0 / 0 votes

1. triangle

A triangle is a polygon with three edges and three vertices. It is the simplest possible polygon. The sum of the internal angles in a triangle always equals 180 degrees. Triangles can be classified based on the relationship of their sides and angles such as equilateral (all sides are equal), isosceles (two sides are equal), scalene (no sides are equal), right-angled (one angle is a right angle), obtuse (one angle is greater than 90 degrees), and acute (all angles are less than 90 degrees).

### Webster DictionaryRate this definition:0.0 / 0 votes

1. Trianglenoun

a figure bounded by three lines, and containing three angles

2. Trianglenoun

an instrument of percussion, usually made of a rod of steel, bent into the form of a triangle, open at one angle, and sounded by being struck with a small metallic rod

3. Trianglenoun

a draughtsman's square in the form of a right-angled triangle

4. Trianglenoun

a kind of frame formed of three poles stuck in the ground and united at the top, to which soldiers were bound when undergoing corporal punishment, -- now disused

5. Trianglenoun

a small constellation situated between Aries and Andromeda

6. Trianglenoun

a small constellation near the South Pole, containing three bright stars

### WikidataRate this definition:0.0 / 0 votes

1. triangle

A triangle is one of the basic shapes in geometry: a polygon with three corners or vertices and three sides or edges which are line segments. A triangle with vertices A, B, and C is denoted . In Euclidean geometry any three points, when non-collinear, determine a unique triangle and a unique plane.

### Dictionary of Nautical TermsRate this definition:0.0 / 0 votes

1. triangle

A geometrical figure consisting of three sides and as many angles. Also, a machine formed by spars for lifting weights, water-casks, &c. Also, a stage hung round a mast, to scrape, paint, or grease it.

### Suggested ResourcesRate this definition:3.0 / 1 vote

1. triangle

The triangle symbol -- In this Symbols.com article you will learn about the meaning of the triangle symbol and its characteristic.

2. triangle

Song lyrics by triangle -- Explore a large variety of song lyrics performed by triangle on the Lyrics.com website.

### EntomologyRate this definition:0.0 / 0 votes

1. Triangle

in Odonata: a small, triangular cell at the junction of cubitus with cubitus 1: a similar cell adjoining it basally is the internal triangle discoidal triangle: cardinal cell; q.v.

### British National Corpus

1. Nouns Frequency

Rank popularity for the word 'Triangle' in Nouns Frequency: #2919

1. relating

3. altering

4. integral

5. teraglin

### Numerology

1. Chaldean Numerology

The numerical value of Triangle in Chaldean Numerology is: 6

2. Pythagorean Numerology

The numerical value of Triangle in Pythagorean Numerology is: 5

### Examples of Triangle in a Sentence

1. We're carrying out the president's direction to end foreign assistance programs with the Northern Triangle.

2. The illicit drug market here is at a tipping point as synthetic opioid production appears to be migrating into places with deep governance problems like the Golden Triangle, southeast Asia could well become a source of opioids for other parts of the world while these substances get mixed into or displace part of the regional heroin supply.

3. There needs to be greater investment [by China] in intelligence-led enforcement to pursue the Chinese businesses and individuals who are running operations at the [Golden Triangle Special Economic Zone]... These shouldn’t be periodic operations that are co-ordinated once a year, but full-time, multi-agency operations.

4. We were paying them tremendous amounts of money. And we're not paying them anymore. Because they haven't done a thing for us. They set up these caravans, at the Secretary's instruction, we are carrying out the President's direction and ending FY 2017 and FY 2018 foreign assistance programs for the Northern Triangle.

5. The timing of our trip relates to the migration issue, which is important to our countries in the Northern Triangle as well as in the United States and Mexico.

### Popularity rank by frequency of use

Triangle#1#7435#10000

## Translations for Triangle

### From our Multilingual Translation Dictionary

• driehoek
• trianglo
• مثلث
• mujina
• üçbucaq
• өсмөйөш
• триъ́гълник
• ত্রিভুজ
• triangle
• triangulu
• trojúhelník, triangl
• triongl
• triangel, trekant
• Dreieck, Triangel
• τρίγωνο
• triangulo
• triángulo
• kolmnurk
• hiruki
• سه‌گوش, مثلث
• kolmio, triangeli
• tríhyrningur
• triangle
• trijehoek
• triantán
• trì-oinnsinneach, trì-cheàrnag, triantan, trì-oisinneag
• ferriños, triángulo
• troorane
• משולש
• त्रिकोण
• triyang
• triangulum, háromszög
• եռանկյուն
• segitiga
• triangulo
• þríhyrningur, þríhorn
• triangolo
• 三角形, トライアングル
• segi telu
• үшбұрыш, үшкіл
• ត្រីកោណ
• 삼각형
• سێگۆشه‌
• үч бурчтук
• triangulum
• driehook
• mbata-isáto
• ຮູບສາມແຈ
• trikampis
• trīsstūris
• tapatoru
• триаголник
• гурвалжин
• kerincing, segi telu, segi tiga
• trekant
• triangel, driehoek
• trekant
• tááʼgóó yistłʼah
• triangle
• trójkąt
• triângulo
• kimsak'uchu
• triunghi
• треуго́льник
• golmmačiegat
• трокут, trokut
• triangel, trikotnik
• gonyonhatu
• trekëndësh
• juru tilu
• trehörning, triangel, trekant
• pembe tatu
• త్రిభుజము, త్రికోణము
• секунҷа
• สามเหลี่ยม
• üçburçluk
• tatsulok
• üçgen
• öçpoçmaq
• uchburchak
• killien
• anígunmẹ́ta
• 三角形

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##### irregularly slashed and jagged as if torn
• A. lacerate
• B. naiant
• C. bristly
• D. irascible