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A regular path or track; a course. Tracing cloth, Tracing paper, specially prepared transparent cloth or paper, which enables a drawing or print to be clearly seen through it, and so allows the use of a pen or pencil to produce a facsimile by following the lines of the original placed beneath.

A secondary notch in the pulse curve, obtained in a sphygmographic tracing.

The tracing of things to their source, and the resolving of knowledge into its original principles.

A tracing, usually made by the barograph, showing graphically the variations of atmospheric pressure for a given time.

A tracing or chart showing the phenomena attendant on thunderstorms.

or black chalk, and then passing a blunt style or needle over the lines, so as to leave a tracing on the paper or other thing against which it is laid or held. [Writting also calque]

The curve or tracing made by a cardiograph.

Designating, pertaining to, or characterized by, that form of pulse tracing, or sphygmogram, in which the descending portion of the curve is marked by secondary elevations due to two or more expansions of the artery in the same beat. -- Ca*tac"rotism (#), n.

The faculty of tracing effects to their causes. G. Combe.

According to the order or series of causes; by tracing effects to causes.

To copy, as a design or painting, by tracing with a pencil on oiled paper, or other transparent substance.

of a curve. See under Axis. -- Curve of quickest descent. See Brachystochrone. -- Curve tracing (Math.), the process of determining the shape, location, singular points, and other perculiarities of a curve from its equation. -- Plane curve (Geom.), a curve such that when a plane passes through three points of the cu…

An instrument for making tracings of the outline or contour of profiles, moldings, etc.

The act of tracing origin or descent, as in grammar or genealogy; as, the derivation of a word from an Aryan root.

A mark, record, or tracing, made by the action of electricity.

That branch of philological science which treats of the history of words, tracing out their origin, primitive significance, and changes of from and meaning.

An instrument for recording, preserving, and reproducing sounds, the record being a tracing of a phonautograph etched in some solid material. Reproduction is accomplished by means of a system attached to an elastic diaphragm.

An instrument for tracing designs on glass.

Of or pertaining to a kymograph; as, a kymographic tracing.

The act or process of tracing a loxodromic curve; the act of moving as if in a loxodromic curve.