| galvanic threshold | The minimal strength of an electrical stimulus of indefinite duration that is able to cause excitation of a tissue, e.g., muscle or nerve. See: chronaxie. Synonym: galvanic threshold. Origin: rheo-+ G. Basis, a base (05 Mar 2000) |
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| galvanic | Of or pertaining to, or exhibiting the phenomena of, galvanism; employing or producing electrical currents. <physics> Galvanic battery, the voltaic pile. See Voltaic. Origin: From Galvani, a professor of physiology at Bologna, on account of his connection (about 1780) with the discovery of dynamical or current electricity: cf. F. Galvanique. Source: Websters Dictionary (01 Mar 1998) |
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| galvanic cautery | An obsolete term for electrocautery. (05 Mar 2000) |
| galvanic cell | <chemistry> See voltaic cell (09 Jan 1998) |
| galvanic current | See: direct current, galvanism. (05 Mar 2000) |
| galvanic nystagmus | Nystagmus involving galvanic stimulation of the labyrinth. (05 Mar 2000) |
| galvanic skin reaction | A change in electrical resistance of the skin, occurring in emotion and in certain other conditions. (12 Dec 1998) |
| galvanic skin reflex | A change in electrical resistance of the skin, occurring in emotion and in certain other conditions. (12 Dec 1998) |
| galvanic skin response | A change in electrical resistance of the skin, occurring in emotion and in certain other conditions. (12 Dec 1998) |
| absolute intensity threshold acuity | The minimal light that can be seen. (05 Mar 2000) |
| absolute threshold | The lowest limit of any perception whatever. Compare: differential threshold. Synonym: stimulus threshold. (05 Mar 2000) |
| achromatic threshold | Threshold of visual sensation, the minimal light intensity evoking a visual sensation. Synonym: achromatic threshold, minimum light threshold. (05 Mar 2000) |
| anaerobic threshold | The oxygen consumption level above which aerobic energy production is supplemented by anaerobic mechanisms during exercise, resulting in a sustained increase in lactate concentration and metabolic acidosis. The anaerobic threshold is affected by factors that modify oxygen delivery to the tissues; it is low in patients with heart disease. Methods of measurement include direct measure of lactate concentration, direct measurement of bicarbonate concentration, and gas exchange measurements. (12 Dec 1998) |
| auditory threshold | The audibility limit of discriminating sound intensity and pitch. (12 Dec 1998) |
| brightness difference threshold | The smallest difference that can be perceived as a difference in brightness. Synonym: light difference. (05 Mar 2000) |
| pain threshold | Amount of stimulation required before the sensation of pain is experienced. (12 Dec 1998) |