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nce of a circuit is equal to the component of the impressed electro-motive force at right angles to the current divided by the current, that is, the component of the impedance due to the self-inductance or capacity of the circuit.

scapes at its periphery in a direction opposed to that of its motion by orifices at right angles, or inclined, to its radii.

. Blount. Rebated cross, a cross which has the extremities of the arms bent back at right angles, as in the fylfot.

one end, and a graduated arc, -- used by military engineers for measuring and laying off angles of fortifications.

ed for that quantity. -- Reciprocal figures (Geom.), two figures of the same kind (as triangles, parallelograms, prisms, etc.), so related that two sides of the one form the extremes of a proportion of which the means are the two corresponding sides of the other; in general, two figures so related that the first corre…

A four-sided figure having only right angles; a right-angled parallelogram.

Right-angled; having one or more angles of ninety degrees. -- Rec*tan"gu*lar*ly (r, adv. -- Rec*tan"gu*lar*ness, n.

inward, as a, in the cut. -- Reëntering polygon, a polygon having one or more reëntering angles.

ative; as, a reflecting mind. Reflecting circle, an astronomical instrument for measuring angless, like the sextant or Hadley's quadrant, by the reflection of light from two plane mirrors which it carries, and differing from the sextant chiefly in having an entire circle. -- Reflecting galvanometer, a galvanometer in…

n, under Magazine. -- Repeating instruments (Astron. & Surv.), instruments for observing angles, as a circle, theodolite, etc., so constructed that the angle may be measured several times in succession, and different, but successive and contiguous, portions of the graduated limb, before reading off the aggregate resul…

ogram, or quadrilateral figure whose sides are equal and the opposite sides parallel. The angles may be unequal, two being obtuse and two acute, as in the cut, or the angles may be equal, in which case it is usually called a square.

ese are strong arches, meeting and crossing one another, dividing the whole space into triangles, which are then filled by vaulted construction of lighter material. Hence, an imitation of one of these in wood, plaster, or the like.

Designed to be placed or worn outward; as, the right side of a piece of cloth. At right angles, so as to form a right angle or right angles, as when one line crosses another perpendicularly. -- Right and left, in both or all directions. [Colloq.] -- Right and left coupling (Pipe fitting), a coupling the opposite ends…

Containing a right angle or right angles; as, a right-angled triangle.

Shaped like an arrowhead; triangular, with the two basal angles prolonged downward.

t. Salient angle. See Salient, a., 4. -- Salient polygon (Geom.), a polygon all of whose angles are salient. -- Salient polyhedron (Geom.), a polyhedron all of whose solid angles are salient.

An instrument used by masons and others to trace and form angles.

the chords of arcs from 0º to 90º in a circle of given radius, -- used in measuring given angles and in plotting angles of given numbers of degrees.

Having the sides and angles unequal; -- said of a triangle.

eed (Polygonum sagittatum) with a square stem beset with fine recurved prickles along the angles. -- Scratch wig. Same as Scratch, 4, above. Thackeray.