tracing

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tracing

 [trās´ing]
a graphic record produced by copying another, or scribed by an instrument capable of making a visual record of movements.

trac·ing

(trās'ing),
1. Any graphic display of electrical or mechanical cardiovascular events, for example, electrocardiogram, phlebogram.
See also: curve.
2. In dentistry, a line or lines, scribed on a table or plate by a pointed instrument, representing a record of movements of the mandible; may be extraoral (made outside the oral cavity) or intraoral (made within the oral cavity).

tracing

Etymology: L, trahere, to draw
a graphic record of a physical event, such as an electrocardiograph tracing made by pens on a moving sheet of paper while the electric impulses of heart muscle contractions are recorded.

trac·ing

(trās'ing)
1. A graphic reproduction of the outline or salient features of a physical object or structure.
See also: curve
2. Any graphic display of electrical or mechanical events in normal or diseased tissues or organs, as detected or measured by diagnostic instruments.
See also: curve
3. dentistry A line or lines, inscribed on a table or plate by a pointed instrument, representing a record of movements of the mandible; may be extraoral (made outside the oral cavity) or intraoral (made within the oral cavity).

trac·ing

(trās'ing)
In dentistry, line or lines, scribed on a table or plate by a pointed instrument, representing a record of mandibular movements; may be extraoral (made outside the oral cavity) or intraoral (made within the oral cavity).

tracing,

n a line or lines or a pattern scribed by a pointed instrument or stylus on a tracing plate or tracing paper.
tracing, arrow point,
tracing, cephalometric
n a line drawing of pertinent features of a cephalometric radiograph made on a piece of transparent paper placed over the radiograph.
tracing, extraoral,
n a tracing of mandibular movements made outside the oral cavity.
tracing, Gothic arch,
tracing, intraoral,
n a tracing of mandibular movements made within the oral cavity. A tracing made by a mechanical device consisting of a weighted or spring-loaded stylus that is attached to one jaw and contacts a coated plate attached to the other jaw. Movement of the mandible causes a tracing to be formed on the horizontally placed coated plate. When the stylus point is in the apex of the tracing, the mandible is said to be in the horizontal position of centric relation. The shape of the tracing depends on the relative location of the marking point and tracing table. The various tracing shapes have been called
Gothic arch, arrow point, and
sea gull tracings. The apex of a properly made tracing indicates the most retruded unstrained relation of the mandible to the maxillae (i.e., the centric relation). The tracings are made by a stylus or needle point by the movement of the mandible. Unless otherwise designated, stylus tracings are made by lateral movements registered on a horizontal plate.
tracing, sea gull,
tracing, stylus,

tracing

a graphic record produced by copying another, or scribed by an instrument capable of making a visual record of movements.
References in classic literature ?
In the days of railways and electric telegraphs I might have succeeded in tracing her.
The Kangaroo immediately adjourned, tracing against the sunset sky a parabolic curve spanning seven provinces, and evanished below the horizon.
Vainly he sought by tracing life backward in memory, to reproduce the moment of his sin; scenes and incidents came crowding tumultuously into his mind, one picture effacing another, or commingling with it in confusion and obscurity, but nowhere could he catch a glimpse of what he sought.
Every intelligent person present could see that the prisoner's chance of an honorable acquittal depended on tracing the poison to the possession of his wife--or at least on proving her expressed intention to obtain it.
It dealt in moral and practical maxims, in information on technical subjects which are of service in daily life -- agriculture, astronomy, augury, and the calendar -- in matters of religion and in tracing the genealogies of men.
Do you wish me to offer you any facilities for tracing Miss Silvester which I may happen to possess?
And now that we know what they are like there is no difficulty in tracing out the sort of life which awaits either of them.
No,' returned she, hesitatingly - 'but I've heard so much about her lately, both at the Wilsons' and the vicarage; - and besides, mamma says, if she were a proper person she would not be living there by herself - and don't you remember last winter, Gilbert, all that about the false name to the picture; and how she explained it - saying she had friends or acquaintances from whom she wished her present residence to be concealed, and that she was afraid of their tracing her out; - and then, how suddenly she started up and left the room when that person came - whom she took good care not to let us catch a glimpse of, and who Arthur, with such an air of mystery, told us was his mamma's friend?
whereas the truth-finder, having raked out that jakes, his own mind, and being there capable of tracing no ray of divinity, nor anything virtuous or good, or lovely, or loving, very fairly, honestly, and logically concludes that no such things exist in the whole creation.
When he thus sat, however, with a stick in his hand, tracing the shadow of his figure on the earth, and reflecting-- verily
While much had been done in England in tracing the course of evolution in nature, history, economics, morals and religion, little had been done in tracing the development of thought on these subjects.
Thus far I have gone, tracing a secure way over the pathless seas, the very stars themselves being witnesses and testimonies of my triumph.