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1. Dictionary

   diagonal

   /dʌɪˈaɡ(ə)nl/

   adjective

   • 1. (of a straight line) joining two opposite corners of a square, rectangle, or other straight-sided shape.
   • ▪ (of a line) straight and at an angle; slanting: "a tie with diagonal stripes"

   noun

   • 1. a straight line joining two opposite corners of a square, rectangle, or other straight-sided shape.
   • ▪ the set of elements of a matrix that lie on a line joining two opposite corners.
   • ▪ a slanting straight line: "the bars of light made diagonals across the entrance"
   • ▪ a slanting row of squares whose colour is the same.

   Word Origin mid 16th century: from Latin diagonalis, from Greek diagōnios ‘from angle to angle’, from dia ‘through’ + gōnia ‘angle’.

   Scrabble Points: 10

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2. dictionary.cambridge.org › dictionary › englishDIAGONAL | English meaning - Cambridge Dictionary

   dictionary.cambridge.org › dictionary › english

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   DIAGONAL definition: 1. A diagonal line is straight and sloping, not horizontal or vertical, for example joining two…. Learn more.

3. www.cuemath.com › geometry › diagonalsWhat is a Diagonal - Meaning, Examples | Diagonal Line - Cuemath

   www.cuemath.com › geometry › diagonals

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   A line segment joining one corner to another but is not an edge is called a diagonal. In other words, a diagonal is a line that connects the opposite vertices of a polygon. Learn the definition, formula, examples & practice questions.

4. en.wikipedia.org › wiki › DiagonalDiagonal - Wikipedia

   en.wikipedia.org › wiki › Diagonal

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   In geometry, a diagonal is a line segment joining two vertices of a polygon or polyhedron, when those vertices are not on the same edge. Informally, any sloping line is called diagonal.

5. www.merriam-webster.com › dictionary › diagonalDiagonal Definition & Meaning - Merriam-Webster

   www.merriam-webster.com › dictionary › diagonal

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   The meaning of DIAGONAL is joining two vertices of a rectilinear figure that are nonadjacent or two vertices of a polyhedral figure that are not in the same face. How to use diagonal in a sentence.

6. dictionary.cambridge.org › us › dictionaryDIAGONAL | definition in the Cambridge English Dictionary

   dictionary.cambridge.org › us › dictionary

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   adjective. us / dɑɪˈæɡ·ə·n ə l / Add to word list. geometry. (of a line) straight and sloping, so that it is neither horizontal nor vertical: A diagonal line in a circle is often used as a symbol to show that certain behavior is forbidden. (Definition of diagonal from the Cambridge Academic Content Dictionary © Cambridge University Press)

7. www.dictionary.com › browse › diagonalDIAGONAL Definition & Meaning | Dictionary.com

   www.dictionary.com › browse › diagonal

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   Diagonal definition: connecting two nonadjacent angles or vertices of a polygon or polyhedron, as a straight line.. See examples of DIAGONAL used in a sentence.

8. www.vocabulary.com › dictionary › diagonalDiagonal - Definition, Meaning & Synonyms | Vocabulary.com

   www.vocabulary.com › dictionary › diagonal

   A diagonal is made out of a straight line that's set at an angle instead of straight up or across. If you picture a square and draw a line connecting the opposite corners, that’s a diagonal line. You’ll find diagonal lines in geometry, and also in the world around you.

9. www.mathsisfun.com › definitions › diagonalDiagonal Definition (Illustrated Mathematics Dictionary) - Math...

   www.mathsisfun.com › definitions › diagonal

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   Illustrated definition of Diagonal: A line segment that goes from one corner to another, but is not an edge. So when we directly join any two corners...

10. www.collinsdictionary.com › dictionary › englishDIAGONAL definition and meaning | Collins English Dictionary

    www.collinsdictionary.com › dictionary › english

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    In geometry, a diagonal is a straight line that joins two opposite corners in a flat four-sided shape such as a square. Mark five points an equal distance apart along the diagonals. Collins COBUILD Advanced Learner’s Dictionary .

11. dictionary.cambridge.org › dictionary › learner-englishDIAGONAL | meaning - Cambridge Learner's Dictionary

    dictionary.cambridge.org › dictionary › learner-english

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    DIAGONAL definition: 1. A diagonal line is straight and sloping and not horizontal or vertical: 2. going from the top…. Learn more.