diagonal
/daɪ̯ˈæɡ(ə)nəl/ adjective, noun, proper noun
Forms diagonals
- adjective (geometry) Joining two nonadjacent vertices (of a polygon or polyhedron).
- adjective Having slanted or oblique lines or markings.
- adjective Having a slanted or oblique direction.
- adjective Of or related to the cater-corner (diagonally opposite) legs of a quadruped, whether the front left and back right or front right and back left.
- noun (geometry) A line joining non-adjacent vertices of a polygon.
- noun (geometry) A line or plane at an oblique angle to another.
- noun (fashion) A line or cut across a fabric at an oblique angle to its sides.
- noun (typography, uncommon) Synonym of slash ⟨/⟩.
- proper noun A city and town in Iowa.
Synonyms
aslant aslope slanted slanting sloped sloping bias slash solidus virgule stroke separatrix
Antonyms
Etymology
From Middle French diagonal, from Latin diagōnālis, from Ancient Greek διαγώνιος (diagṓnios, “from angle to angle”), from διά (diá, “across”) + γωνία (gōnía, “angle”).
Webster’s 1913
- adjective Joining two not adjacent angles of a quadrilateral or multilateral figure; running across from corner to corner; crossing at an angle with one of the sides. Diagonal bond (Masonry), herringbone work. See Herringbone, a. -- Diagonal built (Shipbuilding), built by forming the outer skin of two layers of planking, making angles of about 45º with the keel, in opposite directions.
- noun A right line drawn from one angle to another not adjacent, of a figure of four or more sides, and dividing it into two parts.
- noun A member, in a framed structure, running obliquely across a panel.
Etymology [L. diagonalis, fr. Gr. knee: cf. F. diagonal.]
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “diagonal”, CC BY-SA 4.0. Details