We found 17 dictionaries that define the word triangles:

General (11 matching dictionaries)

1. triangles: Merriam-Webster
2. triangles: Oxford Learner's Dictionaries
3. triangles: Collins English Dictionary
4. Triangles, triangles: Vocabulary.com
5. Triangle's, Triangles, triangle's, triangles: Wordnik
6. triangles: Cambridge Advanced Learner's Dictionary
7. triangles: Wiktionary
8. triangles: Dictionary.com
9. triangles: Cambridge Essential American English Dictionary
10. The Triangles, Triangles (EP), Triangles (novel), Triangles: Wikipedia, the Free Encyclopedia
11. Triangles: Dictionary of Phrase and Fable (1898)

Business (1 matching dictionary)

12. Triangles: Financial dictionary

Computing (1 matching dictionary)

13. Triangles: Encyclopedia

Medicine (2 matching dictionaries)

14. triangles: Merriam-Webster Medical Dictionary
15. Triangles: Medical dictionary

Slang (2 matching dictionaries)

16. triangles: Green’s Dictionary of Slang
17. triangles: Urban Dictionary

(Note: See triangle as well.)

Definitions from Wiktionary (triangles) ▸ noun:  A largely tropical, Old World, erebid moth of species Trigonodes hyppasia, with triangular markings on the wings. Similar: trigon, trilateral, monotrysian, bluebottle, ditrysian, thyridid, glyphipterigine, three-ring, tetrigid, geometrid, more... Types: equilateral, isosceles, scalene, right, acute, obtuse, more... Phrases: similar triangles, right triangles, equilateral triangles, isosceles triangles, spherical triangles, more... Adjectives: similar, equilateral, right, angled, smaller, open, spherical, congruent, equal, solid, black ▸ Words similar to triangles ▸ Usage examples for triangles ▸ Idioms related to triangles ▸ Wikipedia articles (New!) ▸ Popular adjectives describing triangles ▸ Words that often appear near triangles ▸ Rhymes of triangles ▸ Invented words related to triangles