diagonal definition, meaning - what is diagonal in the British English Dictionary & Thesaurus - Cambridge Dictionaries Online

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English definition of “diagonal”

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diagonal

adjective uk   us   /daɪˈæɡ.ən.əl/
A diagonal line is straight and sloping, not horizontal or vertical, for example joining two opposite corners of a square or other flat shape with four sides: The book has a diagonal black stripe on the cover. moving in a diagonal line: The artist achieves this effect using short diagonal strokes. Peters received a diagonal pass and headed the ball into the net.
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diagonally
adverb uk   us   /-i/
It's quickest if you cut diagonally across the park.

diagonal

noun [C] uk   us   /daɪˈæɡ.ən.əl/ specialized
a straight line that joins two opposite corners of a four-sided flat shape, such as a square
(Definition of diagonal from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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