triangular
English

Etymology
From Middle EnglishCategory:English terms inherited from Middle English#TRIANGULARCategory:English terms derived from Middle English#TRIANGULAR triangulare, trianguler, triangulere, from Old FrenchCategory:English terms derived from Old French#TRIANGULAR triangulaire, triangulier and LatinCategory:English terms derived from Latin#TRIANGULAR triangulāris. By surface analysis, tri- + -angularCategory:English terms prefixed with tri-#ANGULARCategory:English terms suffixed with -angular#TRIANGULAR.
Pronunciation
- (UK) IPA(key): /tɹaɪˈæŋ.ɡjə.lə/, /tɹaɪˈæŋ.ɡjʊ.lə/Category:English 4-syllable words#TRIANGULARCategory:English 4-syllable words#TRIANGULARCategory:English terms with IPA pronunciation#TRIANGULAR
- (US) IPA(key): /tɹaɪˈæŋ.ɡjə.lɚ/, /tɹaɪˈaɪŋ.ɡjʊ.lɚ/Category:English 4-syllable words#TRIANGULARCategory:English 4-syllable words#TRIANGULARCategory:English terms with IPA pronunciation#TRIANGULAR
Category:English terms with audio pronunciation#TRIANGULARAudio (US): (file)
Adjective
triangular (comparative more triangular, superlative most triangular)Category:English lemmas#TRIANGULARCategory:English adjectives#TRIANGULARCategory:English entries with incorrect language header#TRIANGULARCategory:Pages with entries#TRIANGULARCategory:Pages with 6 entries#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, […].Category:English terms with quotations#TRIANGULAR
- 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
Derived terms
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 LatinCategory:Catalan terms borrowed from Late Latin#TRIANGULARCategory:Catalan terms derived from Late Latin#TRIANGULAR triangulāris.
Pronunciation
- IPA(key): (Central) [tɾi.əŋ.ɡuˈlar]Category:Catalan terms with IPA pronunciation#TRIANGULAR
- IPA(key): (Balearic) [tɾi.əŋ.ɡuˈla]Category:Catalan terms with IPA pronunciation#TRIANGULAR
- IPA(key): (Valencia) [tɾi.aŋ.ɡuˈlaɾ]Category:Catalan terms with IPA pronunciation#TRIANGULAR
Adjective
triangular m or f (masculine and feminine plural triangulars)Category:Catalan lemmas#TRIANGULARCategory:Catalan adjectives#TRIANGULARCategory:Catalan epicene adjectives#TRIANGULARCategory:Catalan entries with incorrect language header#TRIANGULARCategory:Pages with entries#TRIANGULARCategory:Pages with 6 entries#TRIANGULAR
Etymology 2
From LatinCategory:Catalan terms derived from Latin#TRIANGULAR triangulus + -arCategory:Catalan terms suffixed with -ar#TRIANGULAR.
Pronunciation
- IPA(key): (Central, Balearic) [tɾi.əŋ.ɡuˈla]Category:Catalan terms with IPA pronunciation#TRIANGULAR
- IPA(key): (Valencia) [tɾi.aŋ.ɡuˈlaɾ]Category:Catalan terms with IPA pronunciation#TRIANGULAR
Verb
triangular (first-person singular present triangulo, first-person singular preterite triangulí, past participle triangulat)Category:Catalan lemmas#TRIANGULARCategory:Catalan verbs#TRIANGULARCategory:Catalan first conjugation verbs#TRIANGULARCategory:Catalan entries with incorrect language header#TRIANGULARCategory:Pages with entries#TRIANGULARCategory:Pages with 6 entries#TRIANGULAR
Conjugation
Further reading
- Alcover, Antoni Maria; Moll, Francesc de Borja (1963), “triangular”, in Diccionari català-valencià-balear (in Catalan)
- “triangular” in Diccionari normatiu valencià, Acadèmia Valenciana de la Llengua.
- “triangular”, in Gran Diccionari de la Llengua Catalana, Grup Enciclopèdia Catalana, 2026
- “triangular”, in Diccionari de la llengua catalana [Dictionary of the Catalan Language] (in Catalan), second edition, Institute of Catalan Studies [Catalan: Institut d'Estudis Catalans], April 2007
Galician
Pronunciation
- IPA(key): (standard) /tɾjaŋɡuˈlaɾ/ [t̪ɾjɑŋ.ɡuˈlaɾ]Category:Galician terms with IPA pronunciation#TRIANGULAR
- IPA(key): (gheada) /tɾjaŋħuˈlaɾ/ [t̪ɾjɑŋ.ħuˈlaɾ]Category:Galician terms with IPA pronunciation#TRIANGULAR
- Rhymes: -aɾCategory:Rhymes:Galician/aɾ#TRIANGULARCategory:Rhymes:Galician/aɾ/3 syllables#TRIANGULAR
- Hyphenation: trian‧gu‧lar
Adjective
triangular m or f (plural triangulares)Category:Galician lemmas#TRIANGULARCategory:Galician adjectives#TRIANGULARCategory:Galician epicene adjectives#TRIANGULARCategory:Galician entries with incorrect language header#TRIANGULARCategory:Pages with entries#TRIANGULARCategory:Pages with 6 entries#TRIANGULAR
Related terms
Further reading
- “triangular”, in Dicionario da Real Academia Galega (in Galician), A Coruña: Royal Galician Academy, 2012–2026
Portuguese
Etymology 1
Borrowed from Late LatinCategory:Portuguese terms borrowed from Late Latin#TRIANGULARCategory:Portuguese terms derived from Late Latin#TRIANGULAR triangulāris.
Pronunciation
- (Brazil) IPA(key): /tɾi.ɐ̃.ɡuˈlaʁ/ [tɾɪ.ɐ̃.ɡuˈlah], (faster pronunciation) /tɾjɐ̃.ɡuˈlaʁ/ [tɾjɐ̃.ɡuˈlah]Category:Portuguese 4-syllable words#TRIANGULARCategory:Portuguese 3-syllable words#TRIANGULARCategory:Portuguese terms with IPA pronunciation#TRIANGULAR
- (São Paulo) IPA(key): /tɾi.ɐ̃.ɡuˈlaɾ/ [tɾɪ.ɐ̃.ɡuˈlaɾ], (faster pronunciation) /tɾjɐ̃.ɡuˈlaɾ/Category:Portuguese 4-syllable words#TRIANGULARCategory:Portuguese 3-syllable words#TRIANGULARCategory:Portuguese terms with IPA pronunciation#TRIANGULAR
- (Rio de Janeiro) IPA(key): /tɾi.ɐ̃.ɡuˈlaʁ/ [tɾɪ.ɐ̃.ɡuˈlaχ], (faster pronunciation) /tɾjɐ̃.ɡuˈlaʁ/ [tɾjɐ̃.ɡuˈlaχ]Category:Portuguese 4-syllable words#TRIANGULARCategory:Portuguese 3-syllable words#TRIANGULARCategory:Portuguese terms with IPA pronunciation#TRIANGULAR
- (Caipira) IPA(key): /tɾi.ɐ̃.ɡuˈlaɻ/ [tɾɪ.ɐ̃.ɡuˈlaɻ], (faster pronunciation) /tɾjɐ̃.ɡuˈlaɻ/Category:Portuguese 4-syllable words#TRIANGULARCategory:Portuguese 3-syllable words#TRIANGULARCategory:Portuguese terms with IPA pronunciation#TRIANGULAR
- (Portugal) IPA(key): /tɾi.ɐ̃.ɡuˈlaɾ/, (faster pronunciation) /tɾjɐ̃.ɡuˈlaɾ/Category:Portuguese 4-syllable words#TRIANGULARCategory:Portuguese 3-syllable words#TRIANGULARCategory:Portuguese terms with IPA pronunciation#TRIANGULAR
- (Southern Portugal) IPA(key): /tɾi.ɐ̃.ɡuˈla.ɾi/, (faster pronunciation) /tɾjɐ̃.ɡuˈla.ɾi/Category:Portuguese 5-syllable words#TRIANGULARCategory:Portuguese 4-syllable words#TRIANGULARCategory:Portuguese terms with IPA pronunciation#TRIANGULAR
- Hyphenation: tri‧an‧gu‧lar
Adjective
triangular m or f (plural triangulares)Category:Portuguese lemmas#TRIANGULARCategory:Portuguese adjectives#TRIANGULARCategory:Portuguese epicene adjectives#TRIANGULARCategory:Portuguese entries with incorrect language header#TRIANGULARCategory:Pages with entries#TRIANGULARCategory:Pages with 6 entries#TRIANGULAR
Related terms
Etymology 2
From LatinCategory:Portuguese terms derived from Latin#TRIANGULAR triangulus + -arCategory:Portuguese terms suffixed with -ar#TRIANGULAR.
Pronunciation
- (Brazil) IPA(key): /tɾi.ɐ̃.ɡuˈla(ʁ)/ [tɾɪ.ɐ̃.ɡuˈla(h)], (faster pronunciation) /tɾjɐ̃.ɡuˈla(ʁ)/ [tɾjɐ̃.ɡuˈla(h)]Category:Portuguese 4-syllable words#TRIANGULARCategory:Portuguese 3-syllable words#TRIANGULARCategory:Portuguese terms with IPA pronunciation#TRIANGULAR
- (São Paulo) IPA(key): /tɾi.ɐ̃.ɡuˈla(ɾ)/ [tɾɪ.ɐ̃.ɡuˈla(ɾ)], (faster pronunciation) /tɾjɐ̃.ɡuˈla(ɾ)/Category:Portuguese 4-syllable words#TRIANGULARCategory:Portuguese 3-syllable words#TRIANGULARCategory:Portuguese terms with IPA pronunciation#TRIANGULAR
- (Rio de Janeiro) IPA(key): /tɾi.ɐ̃.ɡuˈla(ʁ)/ [tɾɪ.ɐ̃.ɡuˈla(χ)], (faster pronunciation) /tɾjɐ̃.ɡuˈla(ʁ)/ [tɾjɐ̃.ɡuˈla(χ)]Category:Portuguese 4-syllable words#TRIANGULARCategory:Portuguese 3-syllable words#TRIANGULARCategory:Portuguese terms with IPA pronunciation#TRIANGULAR
- (Caipira) IPA(key): /tɾi.ɐ̃.ɡuˈla(ɻ)/ [tɾɪ.ɐ̃.ɡuˈla(ɻ)], (faster pronunciation) /tɾjɐ̃.ɡuˈla(ɻ)/Category:Portuguese 4-syllable words#TRIANGULARCategory:Portuguese 3-syllable words#TRIANGULARCategory:Portuguese terms with IPA pronunciation#TRIANGULAR
- (Portugal) IPA(key): /tɾi.ɐ̃.ɡuˈlaɾ/, (faster pronunciation) /tɾjɐ̃.ɡuˈlaɾ/Category:Portuguese 4-syllable words#TRIANGULARCategory:Portuguese 3-syllable words#TRIANGULARCategory:Portuguese terms with IPA pronunciation#TRIANGULAR
- (Southern Portugal) IPA(key): /tɾi.ɐ̃.ɡuˈla.ɾi/, (faster pronunciation) /tɾjɐ̃.ɡuˈla.ɾi/Category:Portuguese 5-syllable words#TRIANGULARCategory:Portuguese 4-syllable words#TRIANGULARCategory:Portuguese terms with IPA pronunciation#TRIANGULAR
- Hyphenation: tri‧an‧gu‧lar
Verb
triangular (first-person singular present triangulo, first-person singular preterite triangulei, past participle triangulado)Category:Portuguese lemmas#TRIANGULARCategory:Portuguese verbs#TRIANGULARCategory:Portuguese verbs ending in -ar#TRIANGULARCategory:Portuguese entries with incorrect language header#TRIANGULARCategory:Pages with entries#TRIANGULARCategory:Pages with 6 entries#TRIANGULAR
Conjugation
1Brazilian Portuguese.
2European Portuguese.
Derived terms
Further reading
- “triangular”, in Dicionário Aulete Digital (in Portuguese), Rio de Janeiro: Lexikon Editora Digital, 2008–2026
- “triangular”, in Dicionário inFormal (in Portuguese), 2006–2026
- “triangular” in Dicionário Aberto based on Novo Diccionário da Língua Portuguesa de Cândido de Figueiredo, 1913
- “triangular”, in Dicionário infopédia da Lingua Portuguesa (in Portuguese), Porto: Porto Editora, 2003–2026
- “triangular”, in Michaelis Dicionário Brasileiro da Língua Portuguesa (in Portuguese), São Paulo: Editora Melhoramentos, 2015–2026, →ISBN
- “triangular”, in Dicionário Priberam da Língua Portuguesa (in Portuguese), Lisbon: Priberam, 2008–2026
Romanian
Etymology
Borrowed from FrenchCategory:Romanian terms borrowed from French#TRIANGULARCategory:Romanian terms derived from French#TRIANGULAR triangulaire.
Adjective
triangular m or n (feminine singular triangulară, masculine plural triangulari, feminine/neuter plural triangulare)Category:Romanian lemmas#TRIANGULARCategory:Romanian adjectives#TRIANGULARCategory:Romanian entries with incorrect language header#TRIANGULARCategory:Pages with entries#TRIANGULARCategory:Pages with 6 entries#TRIANGULAR
Declension
| singular | plural | ||||||
|---|---|---|---|---|---|---|---|
| masculine | neuter | feminine | masculine | neuter | feminine | ||
| nominative- accusative | indefinite | triangular | triangulară | triangulari | triangulare | ||
| definite | triangularul | triangulara | triangularii | triangularele | |||
| genitive- dative | indefinite | triangular | triangulare | triangulari | triangulare | ||
| definite | triangularului | triangularei | triangularilor | triangularelor | |||
Spanish
Pronunciation
- IPA(key): /tɾjanɡuˈlaɾ/ [t̪ɾjãŋ.ɡuˈlaɾ]Category:Spanish 3-syllable words#TRIANGULARCategory:Spanish terms with IPA pronunciation#TRIANGULAR
- Rhymes: -aɾCategory:Rhymes:Spanish/aɾ#TRIANGULARCategory:Rhymes:Spanish/aɾ/3 syllables#TRIANGULAR
- Syllabification: trian‧gu‧lar
Etymology 1
Borrowed from Late LatinCategory:Spanish terms borrowed from Late Latin#TRIANGULARCategory:Spanish terms derived from Late Latin#TRIANGULAR triangulāris.
Adjective
triangular m or f (masculine and feminine plural triangulares)Category:Spanish lemmas#TRIANGULARCategory:Spanish adjectives#TRIANGULARCategory:Spanish epicene adjectives#TRIANGULARCategory:Spanish entries with incorrect language header#TRIANGULARCategory:Pages with entries#TRIANGULARCategory:Pages with 6 entries#TRIANGULAR
Etymology 2
From LatinCategory:Spanish terms derived from Latin#TRIANGULAR triangulus + -arCategory:Spanish terms suffixed with -ar#TRIANGULAR.
Verb
triangular (first-person singular present triangulo, first-person singular preterite triangulé, past participle triangulado)Category:Spanish lemmas#TRIANGULARCategory:Spanish verbs#TRIANGULARCategory:Spanish verbs ending in -ar#TRIANGULARCategory:Spanish entries with incorrect language header#TRIANGULARCategory:Pages with entries#TRIANGULARCategory:Pages with 6 entries#TRIANGULAR
Conjugation
Derived terms
Further reading
- “triangular”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8.1, Royal Spanish Academy [Spanish: Real Academia Española], 15 December 2025