1. slanting or oblique: running from one side to another in a slanting or oblique way
2. with slanting lines: having slanting lines or markings
3. mathematics joining angles or corners: describes a line that joins two opposite or nonadjacent angles or corners of a straight-sided geometric figure
noun (pluraldi·ag·o·nals)
Definition:
1. slanting line: a slanting line or direction
2. line joining angles: a line that joins two opposite or nonadjacent angles or corners of a straight-sided geometric figure
3. printing Same as slashn (sense 5)
[Mid-16th century. < Latin diagonalis< Greek diagōnios "from angle to angle" < gōnia "angle"]