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That part of the side which is terminated by the flank prolonged, and the angle of the nearest bastion. Stocqueler. Caustic surface, Heating surface, etc. See under Caustic, Heating, etc. -- Surface condensation, Surface condenser. See under Condensation, and Condenser. -- Surface gauge (Mach.), an instrument consist…

A mark made on the molds of a ship, when building, to show where the angles of the timbers are to be placed. [Written also sirmark.]

ingle base, and connecting it with various points in the tract surveyed by a series of triangles, the angles of which are carefully measured, the relative positions and distances of all parts being computed from these data.

An outwork with converging sides, its head or front forming a reëntrant angle; -- so called from its form. Called also priestcap.

A symbol or ornament in the form of a Greek cross with the ends of the arms at right angles all in the same direction, and each prolonged to the height of the parallel arm of the cross. A great many modified forms exist, ogee and volute as well as rectilinear, while various decorative designs, as Greek fret or meander,…

To dangle; to wave hanging. [Obs.] Johnson.

Growing on the angles of a stem, as the leaves in some species of Selaginella.

lee and shifting the tacks and sails so that she will proceed to windward nearly at right angles to her former course.

An entangled lock, as of hair or wool. Nares.

rm of galvanometer having a circular coil and a short needle, in which the tangent of the angle of deflection of the needle is proportional to the strength of the current. -- Tangent of an angle, the natural tangent of the arc subtending or measuring the angle. -- Tangent of an arc, a right line, as ta, touching the…

rease or diminish the velocity; -- distinguished from a normal force, which acts at right angles to the tangent and changes the direction of the motion without changing the velocity. -- Tangential stress. (Engin.) See Shear, n., 3.

Entangled; intricate.

ce of pipe having a lateral outlet, used to connect a line of pipe with a pipe at a right angle with the line; -- so called because it resembles the letter T in shape.

), to manage an anchored vessel when the tide turns, so that in swinging she shall not entangle the cable.

of Spongiæ in which the spicules are siliceous and have four branches diverging at right angles. Called also Tetractinellinæ.

A plane figure having four sides and angles; a quadrangle, as a square, a rhombus, etc.

Of or pertaining to a tetragon; having four angles or sides; thus, the square, the parallelogram, the rhombus, and the trapezium are tetragonal fingers.

edron, or to the system of hemihedral forms to which the tetrahedron belongs. Tetrahedral angle (Geom.), a solid angle bounded or inclosed by four plane angles.

A solid figure inclosed or bounded by four triangles.

Having four branches diverging at right angles; -- said of certain spicules of sponges.