Definify.com
Webster 1913 Edition
Diagonal
Di-ag′o-nal
,Adj.
[L.
diagonalis
, fr. Gr. [GREEK] from to angle; διά
through + [GREEK] an angle; perh. akin to E. knee
: cf. F. diagonal
.] (Geom.)
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
, Adj.
Diagonal built
(Shipbuilding)
, built by forming the outer skin of two layers of planking, making angles of about 45° with the keel, in opposite directions.
– Diagonal cleavage
. See under
– Cleavage
. Diagonal molding
(Arch.)
, a chevron or zigzag molding.
– Diagonal rib
. (Arch.)
See
– Cross-springer
. Diagonal scale
, a scale which consists of a set of parallel lines, with other lines crossing them obliquely, so that their intersections furnish smaller subdivisions of the unit of measure than could be conveniently marked on a plain scale.
– Diagonal stratification
. (Geol.)
Di-ag′o-nal
,Noun.
1.
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.
2.
(Engin.)
A member, in a framed structure, running obliquely across a panel.
3.
A diagonal cloth; a kind of cloth having diagonal stripes, ridges, or welts made in the weaving.
Webster 1828 Edition
Diagonal
DIAGONAL
,Adj.
1.
In geometry, extending from one angle to another of a quadrilateral figure, and dividing it into two equal parts.2.
Being in an angular direction.DIAGONAL
,Noun.