| transcutaneous electric nerve stimulation | Electrical stimulation of nerves and/or muscles to relieve pain; it is used less frequently to produce anaesthesia. The optimal placements of electrodes or "trigger points" may correspond with acupuncture analgesia points. Tens is sometimes referred to as acupuncture-like when using a low frequency stimulus. (12 Dec 1998) |
|---|---|
| stimulator | 1. Producing stimulation, especially producing stimulation by causing tension on muscle fibre through the nervous tissue. 2. <pharmacology> An agent or remedy that produces stimulation. Origin: L. Stimulans (18 Nov 1997) |
| long-acting thyroid stimulator | <endocrinology, immunology> A thyroid stimulating antibody which is directed against a receptor for TSH on the thyroid gland. This antibody acts like TSH and stimulates the thyroid to produce excessive amounts of thyroid hormone. The presence of this antibody generally indicates Grave's disease (hyperthyroidism). Acronym: LATS (15 Nov 1997) |
| blood gas monitoring, transcutaneous | The noninvasive measurement or determination of the partial pressure (tension) of oxygen and/or carbon dioxide locally in the capillaries of a tissue by the application to the skin of a special set of electrodes. These electrodes contain photoelectric sensors capable of picking up the specific wavelengths of radiation emitted by oxygenated versus reduced haemoglobin. (12 Dec 1998) |
| transcutaneous | <pharmacology> Entering through the dermis or skin, as in administration of a drug applied to the skin in ointment or patch form. (17 Mar 1998) |
| basic electrical rhythm | A slow wave of depolarisation of smooth muscle from the fundus to the pylorus that coordinates gastric peristalsis and emptying. (05 Mar 2000) |
| magneto-electrical | <physics> Pertaining to, or characterised by, electricity by the action of magnets; as, magneto-electric induction. Magneto-electric machine, a form of dynamo-electric machine in which the field is maintained by permanent steel magnets instead of electromagnets. Source: Websters Dictionary (01 Mar 1998) |
| mean electrical axis | The average magnitude and direction of all the electromotive forces developed during the cardiac event under consideration; e.g., atrial or ventricular depolarisation, or ventricular repolarization. See: axis deviation. (05 Mar 2000) |
| normal electrical axis | A mean electrical axis of the heart situated between -30 |
| instantaneous electrical axis | The resultant axis of the electromotive forces developing in the heart at any given moment. (05 Mar 2000) |
| electrical | 1. Pertaining to electricity; consisting of, containing, derived from, or produced by, electricity; as, electric power or virtue; an electric jar; electric effects; an electric spark. 2. Capable of occasioning the phenomena of electricity; as, an electric or electrical machine or substance. 3. Electrifying; thrilling; magnetic. "Electric Pindar." Electric atmosphere, or Electric aura. See Aura. Electrical battery. See Battery. Electrical brush. See Brush. Electric cable. See Telegraph cable, under Telegraph. Electric candle. See Candle. <medicine> Electric cat, any fish which has an electrical organ by means of which it can give an electrical shock. The best known kinds are the torpedo, the gymnotus, or electrical eel, and the electric cat. See Torpedo, and Gymnotus. Electric fluid, the supposed matter of electricity; lightning. <physics> Electrical image, the torpedo. Electric telegraph. See Telegraph. Origin: L. Electrum amber, a mixed metal, Gr.; akin to the beaming sun, cf. Skr. Arc to beam, shine: cf. F. Electrique. The name came from the production of electricity by the friction of amber. Source: Websters Dictionary (01 Mar 1998) |
| electrical alternans | Electrical alternation of the heart. (05 Mar 2000) |
| electrical alternation of heart | A disorder in which the ventricular or atrial complexes or both are regular in time but of alternating pattern; detected by electrocardiography. The P, QRS, T, QRS-T, or P-QRST alternate singly or in combination. (05 Mar 2000) |
| electrical axis | The net direction of the electromotive forces developed in the heart during its activation, usually represented in the frontal plane. See: triaxial reference system. (05 Mar 2000) |
| electrical conductivity | <radiobiology> Degree to which a substance conducts electric current. Can be defined by: (current density) = (conductivity) (applied electric field) Electrons and ions both contribute to current in proportion to their mobility in the system. In a plasma with a magnetic field, there is no longer a one-to-one correspondence between current and electric field. Instead, the current in each direction can be due to combinations of the electric fields in all the other directions. In this case, the current density and the electric field are vectors, and the conductivity becomes a tensor (matrix) which relates them. (09 Oct 1997) |