diagonals

noun

a punctuation mark (/) used to separate related items of information

(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

an oblique line of squares of the same color on a checkerboard

a line or cut across a fabric that is not at right angles to a side of the fabric

(geometry) a straight line connecting any two vertices of a polygon that are not adjacent

adjective

having an oblique or slanted direction

connecting two nonadjacent corners of a plane figure or any two corners of a solid that are not in the same face

Roots

diadia- · Greek · through, across gonia-gon · Greek · angle

Synonyms & related words for diagonals

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Words related to diagonals

Explore words related to diagonals — words associated with it, words that go with it, and its nearest matches in meaning. Related words include brachydiagonal, macrodiagonal, diagonally, orthodiagonal, diagrid, clinodiagonal, slanting, cornerwise. Click any word to make it the center of the map and keep exploring the web of connections.

Where does diagonals come from?

The word diagonals breaks down into 2 roots of Greek origin: dia-, from Greek dia (“through, across”); and -gon, from Greek gonia (“angle”). Explore each root to see other English words built from the same source.