# triangular
## English
### Etymology

From Middle English triangulare, trianguler, triangulere, from Old French triangulaire, triangulier and Latin triangulāris.

### Pronunciation

* (UK) IPA: /tɹaɪˈæŋ.ɡjə.lə/, /tɹaɪˈæŋ.ɡjʊ.lə/
* (US) IPA: /tɹaɪˈæŋ.ɡjə.lɚ/, /tɹaɪˈaɪŋ.ɡjʊ.lɚ/
* Audio (US):(file)

### Adjective

triangular (comparative more triangular, superlative most triangular)
* Shaped like a triangle.
** 1963, Margery Allingham, “Foreword: The Turk Street Mile”, in The China Governess: A Mystery, London: Chatto & Windus, →OCLC, page 15:A very neat old woman, still in her good outdoor coat and best beehive hat, was sitting at a polished mahogany table on whose surface there were several scored scratches so deep that a triangular piece of the veneer had come cleanly away, […].
* Of, or pertaining to, triangles.
* Having a triangle as a base; as, a triangular prism, a triangular pyramid.
* Having three elements or parties; trilateral, tripartite.

#### Synonyms

* threeside, trigonal

#### Derived terms

* obtriangular
* triangular colon
* triangular division
* triangular harp
* triangular hebesphenorotunda
* triangular number
* triangular prism
* triangular pyramid
* triangular trade

#### Translations

    The translations below need to be checked and inserted above into the appropriate translation tables. See instructions at Wiktionary:Entry layout § Translations.

## Catalan
### Etymology 1

Borrowed from Late Latin triangulāris.

#### Pronunciation

* IPA: (Central) [tɾi.əŋ.ɡuˈlar]
* IPA: (Balearic) [tɾi.əŋ.ɡuˈla]
* IPA: (Valencia) [tɾi.aŋ.ɡuˈlaɾ]

#### Adjective

triangular m or f (masculine and feminine plural triangulars)
* (geometry) triangular

### Etymology 2

From Latin triangulus +‎ -ar.

#### Pronunciation

* IPA: (Central, Balearic) [tɾi.əŋ.ɡuˈla]
* IPA: (Valencia) [tɾi.aŋ.ɡuˈlaɾ]

#### Verb

triangular (first-person singular present triangulo, first-person singular preterite triangulí, past participle triangulat)
* (transitive) to triangulate

##### Conjugation
### Further reading

* “triangular” in Diccionari català-valencià-balear, Antoni Maria Alcover and Francesc de Borja Moll, 1962.
* “triangular” in Diccionari normatiu valencià, Acadèmia Valenciana de la Llengua.
* “triangular”, in Gran Diccionari de la Llengua Catalana, Grup Enciclopèdia Catalana, 2025
* “triangular” in Diccionari de la llengua catalana, segona edició, Institut d’Estudis Catalans.

## Galician
### Pronunciation

* IPA: /tɾjaŋɡuˈlaɾ/ [t̪ɾjɑŋ.ɡuˈlaɾ]
* IPA: (standard) /tɾjaŋɡuˈlaɾ/ [t̪ɾjɑŋ.ɡuˈlaɾ]
* IPA: (gheada) /tɾjaŋħuˈlaɾ/ [t̪ɾjɑŋ.ħuˈlaɾ]
* Rhymes: -aɾ
* Hyphenation: trian‧gu‧lar

### Adjective

triangular m or f (plural triangulares)
* triangular, shaped like a triangle
* having a triangle as a base
* having three elements or parties

#### Related terms

* triángulo
* triangularmente

### Further reading

* “triangular”, in Dicionario da Real Academia Galega (in Galician), A Coruña: Royal Galician Academy, 2012–2025

## Portuguese
### Etymology 1

Borrowed from Late Latin triangulāris.

#### Pronunciation

* (Brazil) IPA: /tɾi.ɐ̃.ɡuˈlaʁ/ [tɾɪ.ɐ̃.ɡuˈlah], (faster pronunciation) /tɾjɐ̃.ɡuˈlaʁ/ [tɾjɐ̃.ɡuˈlah]
* (Brazil) IPA: /tɾi.ɐ̃.ɡuˈlaʁ/ [tɾɪ.ɐ̃.ɡuˈlah], (faster pronunciation) /tɾjɐ̃.ɡuˈlaʁ/ [tɾjɐ̃.ɡuˈlah]
** (São Paulo) IPA: /tɾi.ɐ̃.ɡuˈlaɾ/ [tɾɪ.ɐ̃.ɡuˈlaɾ], (faster pronunciation) /tɾjɐ̃.ɡuˈlaɾ/
** (Rio de Janeiro) IPA: /tɾi.ɐ̃.ɡuˈlaʁ/ [tɾɪ.ɐ̃.ɡuˈlaχ], (faster pronunciation) /tɾjɐ̃.ɡuˈlaʁ/ [tɾjɐ̃.ɡuˈlaχ]
** (Southern Brazil) IPA: /tɾi.ɐ̃.ɡuˈlaɻ/ [tɾɪ.ɐ̃.ɡuˈlaɻ], (faster pronunciation) /tɾjɐ̃.ɡuˈlaɻ/
* (Portugal) IPA: /tɾi.ɐ̃.ɡuˈlaɾ/, (faster pronunciation) /tɾjɐ̃.ɡuˈlaɾ/
* (Portugal) IPA: /tɾi.ɐ̃.ɡuˈlaɾ/, (faster pronunciation) /tɾjɐ̃.ɡuˈlaɾ/
** (Southern Portugal) IPA: /tɾi.ɐ̃.ɡuˈla.ɾi/, (faster pronunciation) /tɾjɐ̃.ɡuˈla.ɾi/
* Hyphenation: tri‧an‧gu‧lar

#### Adjective

triangular m or f (plural triangulares)
* (geometry) triangular

##### Related terms

* triângulo

### Etymology 2

From Latin triangulus +‎ -ar.

#### Pronunciation

* (Brazil) IPA: /tɾi.ɐ̃.ɡuˈla(ʁ)/ [tɾɪ.ɐ̃.ɡuˈla(h)], (faster pronunciation) /tɾjɐ̃.ɡuˈla(ʁ)/ [tɾjɐ̃.ɡuˈla(h)]
* (Brazil) IPA: /tɾi.ɐ̃.ɡuˈla(ʁ)/ [tɾɪ.ɐ̃.ɡuˈla(h)], (faster pronunciation) /tɾjɐ̃.ɡuˈla(ʁ)/ [tɾjɐ̃.ɡuˈla(h)]
** (São Paulo) IPA: /tɾi.ɐ̃.ɡuˈla(ɾ)/ [tɾɪ.ɐ̃.ɡuˈla(ɾ)], (faster pronunciation) /tɾjɐ̃.ɡuˈla(ɾ)/
** (Rio de Janeiro) IPA: /tɾi.ɐ̃.ɡuˈla(ʁ)/ [tɾɪ.ɐ̃.ɡuˈla(χ)], (faster pronunciation) /tɾjɐ̃.ɡuˈla(ʁ)/ [tɾjɐ̃.ɡuˈla(χ)]
** (Southern Brazil) IPA: /tɾi.ɐ̃.ɡuˈla(ɻ)/ [tɾɪ.ɐ̃.ɡuˈla(ɻ)], (faster pronunciation) /tɾjɐ̃.ɡuˈla(ɻ)/
* (Portugal) IPA: /tɾi.ɐ̃.ɡuˈlaɾ/, (faster pronunciation) /tɾjɐ̃.ɡuˈlaɾ/
* (Portugal) IPA: /tɾi.ɐ̃.ɡuˈlaɾ/, (faster pronunciation) /tɾjɐ̃.ɡuˈlaɾ/
** (Southern Portugal) IPA: /tɾi.ɐ̃.ɡuˈla.ɾi/, (faster pronunciation) /tɾjɐ̃.ɡuˈla.ɾi/
* Hyphenation: tri‧an‧gu‧lar

#### Verb

triangular (first-person singular present triangulo, first-person singular preterite triangulei, past participle triangulado)
* (transitive) to triangulate

##### Conjugation

$^1$Brazilian Portuguese. $^2$European Portuguese.

##### Derived terms

* triangulação

### Further reading

* “triangular”, in iDicionário Aulete (in Portuguese), Rio de Janeiro: Lexikon Editora Digital, 2008–2025
* “triangular”, in Dicionário inFormal (in Portuguese), 2006–2025
* “triangular” in Dicionário Aberto based on Novo Diccionário da Língua Portuguesa de Cândido de Figueiredo, 1913
* “triangular”, in Dicionário infopédia da Língua Portuguesa (in Portuguese), Porto: Porto Editora, 2003–2025
* “triangular”, in Michaelis Dicionário Brasileiro da Língua Portuguesa (in Portuguese), São Paulo: Editora Melhoramentos, 2015–2025
* “triangular”, in Dicionário Priberam da Língua Portuguesa (in Portuguese), Lisbon: Priberam, 2008–2025

## Romanian
### Etymology

Borrowed from French triangulaire.

### Adjective

triangular m or n (feminine singular triangulară, masculine plural triangulari, feminine and neuter plural triangulare)
* triangular

#### Declension
## Spanish
### Pronunciation

* IPA: /tɾjanɡuˈlaɾ/ [t̪ɾjãŋ.ɡuˈlaɾ]
* Rhymes: -aɾ
* Syllabification: trian‧gu‧lar

### Etymology 1

Borrowed from Late Latin triangulāris.

#### Adjective

triangular m or f (masculine and feminine plural triangulares)
* (geometry) triangular

### Etymology 2

From Latin triangulus +‎ -ar.

#### Verb

triangular (first-person singular present triangulo, first-person singular preterite triangulé, past participle triangulado)
* (transitive) to triangulate

##### Conjugation

$^1$Mostly obsolete, now mainly used in legal language. $^2$Argentine and Uruguayan voseo prefers the tú form for the present subjunctive.

##### Derived terms

* triangulación

### Further reading

* “triangular”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8, Royal Spanish Academy [Spanish: Real Academia Española], 2024 December 10