| analyzing rod | A device used with a surveyor to determine the relative positions of parallel surfaces and undercuts when designing removable partial dentures. (05 Mar 2000) |
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| quantitative | Denoting or expressible as quantity, relating to the proportionate quantities or to the amount of the constituents of a compound. Origin: L. Quantitativus (18 Nov 1997) |
| quantitative alteration | In electric irritability, a gradual loss of contractility in a muscle in response to static, faradic, and galvanic currents successively. (05 Mar 2000) |
| quantitative analysis | Determination of the amount, as well as the nature, of each of the elements composing a substance. (05 Mar 2000) |
| quantitative genetics | The formal study of measurable genetic traits, traditionally but not necessarily confined to galtonian genetics. (05 Mar 2000) |
| quantitative hypertrophy | <pathology> The abnormal multiplication or increase in the number of normal cells in normal arrangement in a tissue. Compare: hypertrophy. Origin: Gr. Plasis = formation (18 Nov 1997) |
| quantitative perimetry | A plotting of the visual field in isopters of equal retinal sensitivity. (05 Mar 2000) |
| quantitative trait | A characteristic showing quantitative inheritance such as skin pigmentation in man. (12 Dec 1998) |
| reed instrument theory | A no longer tenable theory stating that in human voice production the larynx functions in a manner similar to a reed musical instrument. (05 Mar 2000) |
| plugging instrument | A dental instrument used for condensing gold (foil), amalgam, or any plastic material in a cavity, and which is operated by hand or by mechanical means. Synonym: packer, plugging instrument. (05 Mar 2000) |
| Sabouraud-Noire instrument | An obsolete device for measuring the quantity of X-rays by means of the change in colour of a disk of barium platinocyanide which exposure to them produces; the unit used in this method is called tint B = erythema dose. (05 Mar 2000) |
| purse-string instrument | An intestinal clamp with jaws at an angle to the handle; when closed across the bowel, large grooved interdigitating serrations allow passage of a straight needle and suture through each side to form a purse-string suture, after which the clamp is removed. (05 Mar 2000) |
| stereotactic instrument | Stereotaxic instrument, an apparatus attached to the head, used to localise precisely an area in the brain by means of coordinates related to intracerebral structures. (05 Mar 2000) |
| stringed instrument theory | A no longer tenable theory stating that in human voice production the vocal cords function in a manner similar to the strings in a stringed musical instrument. (05 Mar 2000) |
| instrument | A tool or implement. Origin: L. Instrumentum (05 Mar 2000) |