Diagonal Definition

dī-ăgə-nəl
diagonals
adjective
Extending between the vertices of any two nonadjacent angles in a polygonal figure or between any two vertices not in the same face in a polyhedral figure.
Webster's New World
Joining two vertices of a polyhedron not in the same face.
American Heritage
Moving or extending obliquely, esp. at a 45° angle; slanting.
Webster's New World
Having a slanted or oblique direction.
American Heritage
Having slanting markings, lines, etc.
Webster's New World
Advertisement
noun
diagonals
A diagonal line or plane.
Webster's New World
Webster's New World
Any diagonal course, row, order, or part.
Webster's New World
Cloth woven with diagonal lines; twill.
Webster's New World
A virgule.
American Heritage
Advertisement

Other Word Forms of Diagonal

Noun

Singular:
diagonal
Plural:
diagonals

Origin of Diagonal

  • From Middle French diagonal, from Latin diagōnālis, from Ancient Greek διαγώνιος (diagonios, “from angle to angle”), from διά (dia, “across”) + γωνία (gonia, “angle”).

    From Wiktionary

  • Latin diagōnālis from Greek diagōnios from angle to angle dia- dia- gōniā angle, corner genu-1 in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

Advertisement

Find Similar Words

Find similar words to diagonal using the buttons below.

Words Starting With

Words Ending With

Unscrambles

diagonal