diagonal
Syllables: di·ag·o·nal/daɪ̯ˈeɪ̯ɡ(ə)nəl//daɪ̯ˈæɡ(ə)nəl/
diagonal adjective: joining two nonadjacent vertices (of a polygon or polyhedron).
Adjective
diagonal (not comparable)
- Joining two nonadjacent vertices (of a polygon or polyhedron).
- Having slanted or oblique lines or markings.
- Having a slanted or oblique direction.
- The visitors' undoing was caused by a diagonal ball from the right which was nodded into the six-yard area by Ian Evatt and finished off by Campbell.2011 January 12, Saj Chowdhury, “Liverpool 2 - 1 Liverpool”, in BBC
- Of or related to the cater-corner (diagonally opposite) legs of a quadruped, whether the front left and back right or front right and back left.
Noun
diagonal (plural diagonals)
- A line joining non-adjacent vertices of a polygon.
- A line or plane at an oblique angle to another.
- A line or cut across a fabric at an oblique angle to its sides.
- Synonyms:
- bias
- Synonym of slash ⟨/⟩.
- Initial inquiries among professional typists uncover names like slant, slant line, slash, and slash mark. Examination of typing instruction manuals discloses additional names such as diagonal and diagonal mark, and other sources provide the designation oblique.1965, Dmitri A. Borgmann, Language on Vacation, page 240
- Synonyms:
- slash
Proper noun capitalized: Diagonal
Diagonal
diagonal meaning in Hindi, Tamil, Marathi and Urdu
diagonal in Hindi
- geometry: joining two nonadjacent vertices
- विकर्ण vikarṇ
diagonal in Tamil
- குறுக்குக்கோடு, நேரெதிரான, மூலைவிட்டம், குறுக்காக, மூலை விட்டம், மூலவிட்டம்
diagonal in Marathi
- विकर्ण
diagonal in Urdu
- ڈائیگنل, ڈایگنل, ڈایگونل
More languagesFewer languages
- diagonal in Bengali
- কর্ণ korno
- diagonal in Telugu
- వికర్ణం, వికర్ణ
- diagonal in Malayalam
- വികർണം
- diagonal in Kannada
- ಅಡ್ದಗೋನ, ಅಡ್ಡಬದಿ, ಮೂಲೆಗೆರೆ, ಓರೆಯಾದ
- diagonal in Punjabi
- ਤਿਰਛੇ, ਵਿਕਰ੍ਣ
- diagonal in Gujarati
- વિકર્ણ, ત્રાંસા
- diagonal in Odia
- ତିର୍ଯକ
- diagonal in Sanskrit
- कर्ण karṇa
- diagonal in Nepali
- विकर्ण, तिर्यक
- diagonal in Tagalog
- hilis
- diagonal in Arabic
- مَائِل māʔil, قُطْرِيّ quṭriyy
- diagonal in Persian
- تراگوشه tarâguše, تراکنج tarâkonj
Examples of diagonal in a sentence
- Cantor’s “diagonal proof” shows that the set of real numbers is uncountable.
- In a diagonal matrix, non-zero elements appear only in the main diagonal.
- Hermitian matrices have real diagonal elements as well as real eigenvalues.
Synonyms of diagonal
Antonyms
Forms of diagonal
| plural | diagonals |
|---|
Origin of diagonal
From Middle French diagonal, from Latin diagōnālis, from Ancient Greek διαγώνιος (diagṓnios, “from angle to angle”), from διά (diá, “across”) + γωνία (gōnía, “angle”).
Words formed from diagonal
- bidiagonal
- brachydiagonal
- clinodiagonal
- diagonal cutters
- diagonalisation
- diagonality
- diagonalness
- diagonalwise
- diagrid
- dikes
- dykes
- equidiagonal
- gyrodiagonal
- heptadiagonal
- macrodiagonal
- nondiagonal
- offdiagonal
- orthodiagonal
- pandiagonal
- pentadiagonal
- quasidiagonal
- subdiagonal
- superdiagonal
- tridiagonal
- diagonalize
- antidiagonal
- broken diagonal
- Cantor's diagonal argument
- counterdiagonal
- diagonal argument
- diagonal calendar
- diagonal element
- diagonalization
- diagonally
- diagonal mark
- diagonal matrix
- diagonal morphism
- diagonal scale
- diagonal spread
- leading diagonal
- main diagonal
- minor diagonal
- secondary diagonal
- space diagonal
Phrases with diagonal
Words that rhyme with diagonal
Questions about diagonal
- What does diagonal mean?
- Diagonal means joining two nonadjacent vertices (of a polygon or polyhedron).
- What is diagonal in Hindi?
- Diagonal in Hindi is विकर्ण (vikarṇ). See Diagonal meaning in Hindi.
- What part of speech is diagonal?
- Diagonal can be an adjective, a noun or a proper noun.
- How do you pronounce diagonal?
- Diagonal is pronounced /daɪ̯ˈæɡ(ə)nəl/ (UK).
Words near diagonal in the dictionary
Source and license
Adapted from Wiktionary: diagonal (page history and authors); Diagonal (page history and authors); diagonal (Tamil Wiktionary) (page history and authors); diagonal (Marathi, IndicTrans2 machine translation) (model and license); diagonal (Urdu, IndicTrans2 machine translation) (model and license); diagonal (Telugu, IndicTrans2 machine translation) (model and license); diagonal (Malayalam Wiktionary) (page history and authors); diagonal (Kannada Wiktionary) (page history and authors); diagonal (Punjabi, IndicTrans2 machine translation) (model and license); diagonal (Gujarati, IndicTrans2 machine translation) (model and license); diagonal (Odia, IndicTrans2 machine translation) (model and license); diagonal (Nepali, IndicTrans2 machine translation) (model and license). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.
Last updated:
Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Vealhurl-diagonal.wav.
Cite this entry: “diagonal.” Word.ws, https://word.ws/diagonal. Based on Wiktionary, CC BY-SA 4.0.