In geometry, extending, as a line, from one angle to another not adjacent, within any figure.
Being in an oblique direction; lying obliquely.
Marked by oblique lines: as, diagonal cloth.
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A soft material used as a ground for embroidery, generally made very wide, and dyed in plain colors without pattern.
A material for men's wear, especially for coats and waistcoats.
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noun.
A straight line drawn from one angle to or through another, not adjacent, in any plane or solid figure.
noun.
Any oblique line.
noun.
Specifically
noun.
In chess, checkers, etc., a line of squares running diagonally across the board. See chess.
noun.
Same as diagonal cloth, especially in the United States: a term introduced about 1875.