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We found 43 dictionaries with English definitions that include the word diagonal:
Click on the first link on a line below to go directly to a page where "diagonal" is defined.

General dictionaries General (30 matching dictionaries)
  1. diagonal: Merriam-Webster.com [home, info]
  2. diagonal: Oxford Learner's Dictionaries [home, info]
  3. diagonal: American Heritage Dictionary of the English Language [home, info]
  4. diagonal: Collins English Dictionary [home, info]
  5. diagonal: Vocabulary.com [home, info]
  6. diagonal, diagonal: Macmillan Dictionary [home, info]
  7. Diagonal, diagonal: Wordnik [home, info]
  8. diagonal: Cambridge Advanced Learner's Dictionary [home, info]
  9. Diagonal, diagonal: Wiktionary [home, info]
  10. diagonal: Webster's New World College Dictionary, 4th Ed. [home, info]
  11. diagonal: The Wordsmyth English Dictionary-Thesaurus [home, info]
  12. diagonal: Infoplease Dictionary [home, info]
  13. diagonal: Dictionary.com [home, info]
  14. diagonal: Online Etymology Dictionary [home, info]
  15. Diagonal, diagonal: UltraLingua English Dictionary [home, info]
  16. diagonal: Cambridge Dictionary of American English [home, info]
  17. Diagonal: Wikipedia, the Free Encyclopedia [home, info]
  18. Diagonal: Online Plain Text English Dictionary [home, info]
  19. diagonal: Webster's Revised Unabridged, 1913 Edition [home, info]
  20. diagonal: Rhymezone [home, info]
  21. diagonal, diagonal, diagonal: AllWords.com Multi-Lingual Dictionary [home, info]
  22. diagonal: Webster's 1828 Dictionary [home, info]
  23. Diagonal: 1911 edition of the Encyclopedia Britannica [home, info]
  24. diagonal: Free Dictionary [home, info]
  25. diagonal: Mnemonic Dictionary [home, info]
  26. diagonal: WordNet 1.7 Vocabulary Helper [home, info]
  27. diagonal: LookWAYup Translating Dictionary/Thesaurus [home, info]
  28. diagonal: Dictionary/thesaurus [home, info]

Art dictionaries Art (1 matching dictionary)
  1. diagonal: ArtLex Lexicon of Visual Art Terminology [home, info]

Business dictionaries Business (3 matching dictionaries)
  1. Diagonal: Construction Term Glossary [home, info]
  2. Diagonal: Deardorff's Glossary of International Economics [home, info]
  3. diagonal: Legal dictionary [home, info]

Computing dictionaries Computing (1 matching dictionary)
  1. diagonal: Encyclopedia [home, info]

Medicine dictionaries Medicine (1 matching dictionary)
  1. diagonal: online medical dictionary [home, info]

Miscellaneous dictionaries Miscellaneous (1 matching dictionary)
  1. diagonal, diagonal: Wordcraft Dictionary [home, info]

Science dictionaries Science (3 matching dictionaries)
  1. Diagonal: Eric Weisstein's World of Mathematics [home, info]
  2. diagonal: Botanical Terms [home, info]
  3. diagonal: PlanetMath Encyclopedia [home, info]

Slang dictionaries Slang (1 matching dictionary)
  1. diagonal: Urban Dictionary [home, info]

Sports dictionaries Sports (1 matching dictionary)
  1. Diagonal: Chess Dictionary [home, info]

Tech dictionaries Tech (1 matching dictionary)
  1. Diagonal: AUTOMOTIVE TERMS [home, info]

(Note: See diagonals for more definitions.)

Quick definitions from Macmillan (
American English Definition British English Definition

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Quick definitions from WordNet (diagonal)

noun:  (mathematics) a set of entries in a square matrix running diagonally either from the upper left to lower right entry or running from the upper right to lower left entry
noun:  an oblique line of squares of the same color on a checkerboard ("The bishop moves on the diagonals")
noun:  a line or cut across a fabric that is not at right angles to a side of the fabric
noun:  (geometry) a straight line connecting any two vertices of a polygon that are not adjacent
noun:  a punctuation mark (/) used to separate related items of information
adjective:  at an angle; especially connecting two nonadjacent corners of a plane figure or any two corners of a solid that are not in the same face ("A diagonal line across the page")
adjective:  having an oblique or slanted direction

▸ Also see diagonals
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Popular nouns described by diagonal

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Rhymes of diagonal

Invented words related to diagonal

Phrases that include diagonal:   diagonal matrices, diagonal stratification, diagonal ribs, diagonal band of broca, diagonal conjugate, more...

Words similar to diagonal:   aslant, aslope, bias, separatrix, slanted, slanting, slash, sloped, sloping, solidus, stroke, virgule, more...

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