| panoramic rotating machine | An X-ray machine using a reciprocating motion of the tube and extraoral film to produce a radiograph of all the teeth and surrounding structures. (05 Mar 2000) |
|---|---|
| rotating anode | In diagnostic radiography, modern X-ray tubes that have a mushroom-shaped anode that rotates rapidly to avoid local heat buildup from electron impact during X-ray generation. (05 Mar 2000) |
| rotating anode tube | A modern X-ray tube, in which heat buildup is distributed through a larger volume by rotating the target. (05 Mar 2000) |
| nosepiece rotating | <microscopy> A device on the end of the microscope tube to permit the mounting of two to six objectives, any of which may be swung into place, ready for use, by rotating the nose-piece to the desired position. The nosepiece usually occupies a mechanical-tubelength space of 15 mm. (05 Aug 1998) |
| Rummel tourniquet | A tourniquet fashioned by passing an umbilical tape around a vessel and bringing both ends through a short red rubber catheter. The tourniquet can be tightened and secured with a perpendicularly placed haemostat at the end of the catheter farthest from the vessel. (05 Mar 2000) |
| Dupuytren's tourniquet | An instrument for compression on the abdominal aorta. (05 Mar 2000) |
| tourniquet | <equipment> An apparatus designed for the compression of the vessels of the limb. A loosely applied tourniquet can impede venous blood flow out of the extremity. A tightly applied tourniquet can also impede arterial blood flow into the extremity. (12 Jan 1998) |
| tourniquet poditis | Postischemic acute inflammatory oedema in the foot (or paw), as the result of complete obstruction of the circulation to that member by use of a tourniquet; produced experimentally in animals as a means of evaluating the anti-inflammatory efficacy of drugs. (05 Mar 2000) |
| tourniquet test | See: capillary fragility test, Rumpel-Leede test. (05 Mar 2000) |
| Esmarch tourniquet | A narrow hard rubber tourniquet with a chain fastener. Synonym: Esmarch bandage. (05 Mar 2000) |
| automatic | 1. Having an inherent power of action or motion. "Nothing can be said to be automatic." (Sir H. Davy) 2. Pertaining to, or produced by, an automaton; of the nature of an automaton; self-acting or self-regulating under fixed conditions; especially. Applied to machinery or devices in which certain things formerly or usually done by hand are done by the machine or device itself; as, the automatic feed of a lathe; automatic gas lighting; an automatic engine or switch; an automatic mouse. 3. Not voluntary; not depending on the will; mechanical; as, automatic movements or functions. "Unconscious or automatic reasoning." (H. Spenser) Automatic arts, such economic arts or manufacture as are carried on by self-acting machinery. Origin: Cf. F. Automatique. See Automaton. Source: Websters Dictionary (01 Mar 1998) |
| automatic audiometer | An audiometer that is operated by the patient, enabling him to control the intensity of the tone presented to him and thus track his own hearing thresholds. (05 Mar 2000) |
| automatic audiometry | An audiometric technique using an automatic audiometer, which enables the patient to track his own hearing thresholds by controlling the intensity of the signal being presented to him, while the audiometer sweeps through the audible frequency range. (05 Mar 2000) |
| automatic beat | In contrast to forced beat, an ectopic beat that arises de novo and is not precipitated by the preceding beat; thus escaped and parasystolic beat's are automatic. Synonym: automatic contraction. (05 Mar 2000) |
| automatic condenser | A mechanically or electrically activated device used to provide condensing pressure in the placement of amalgam or gold foil in a cavity preparation. Synonym: automatic condenser. (05 Mar 2000) |