(Di`a*gom"e*ter) n. [Gr. to transmit + -meter.] A sort of electroscope, invented by Rousseau,
in which the dry pile is employed to measure the amount of electricity transmitted by different bodies, or
to determine their conducting power. Nichol.
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 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.) Same as Cross bedding, under Cross, a.
(Di*ag"o*nal) a. [L. diagonalis, fr. Gr. from to angle; dia` through + 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.
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.
(Di*ag"o*nal*ly), adv. In a diagonal direction.
(Di`a*go"ni*al) a. Diagonal; diametrical; hence; diametrically opposed. [Obs.]
Sin can have no tenure by law at all, but is rather an eternal outlaw, and in hostility with law past all
atonement; both diagonal contraries, as much allowing one another as day and night together in one
(Di"a*gram) n. [Gr. fr. to mark out by lines; dia` through + to draw, write: cf. F. diagramme.
1. (Geom.) A figure or drawing made to illustrate a statement, or facilitate a demonstration; a plan.
2. Any simple drawing made for mathematical or scientific purposes, or to assist a verbal explanation
which refers to it; a mechanical drawing, as distinguished from an artistical one.
Indicator diagram. (Steam Engine) See Indicator card, under indicator
(Di"a*gram), v. t. To put into the form of a diagram.
(Di`a*gram*mat"ic) a. Pertaining to, or of the nature of, a diagram; showing by diagram.
(Di"a*graph) n. [Gr. to draw: cf. F. diagraphe. See Diagram.] A drawing instrument, combining
a protractor and scale.
(Di`a*graph"ic Di`a*graph"ic*al) a. [Cf. F. diagraphique.] Descriptive.
(Di`a*graph"ics) n. The art or science of descriptive drawing; especially, the art or science
of drawing by mechanical appliances and mathematical rule.
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