| microwave interferometer | <radiobiology> A microwave interferometer uses radio waves in the microwave frequency (or wavelength) range as the electromagnetic signal. Microwave interferometers are used to measure the line-averaged density of a plasma along the path through which the microwave beam is passed, through phase shifts in the propagated beam. See: interferometer, interferometry. (09 Oct 1997) |
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| microwave radiation | Electromagnetic radiation with wavelengths between 3 millimetres and 300 millimetres. Used in radar, these waves have frequencies between 1-100 gigahertz. Microwaves have also been harnessed for cooking in microwave ovens. (09 Oct 1997) |
| microwave therapy | Treatment with high frequency radiations of 3,000,000,000 Hz (3000 MHz), at a wavelength of 10 cm. Synonym: microwave therapy. Origin: micro-+ G. Kyma, a wave, + therapeia, treatment (05 Mar 2000) |
| medical diathermy | Diathermy of mild degree causing no destruction of tissue. Synonym: thermopenetration. (05 Mar 2000) |
| short wave diathermy | Therapeutic elevation of temperature in the tissues by means of an oscillating electric current of extremely high frequency (10 to 100 million Hz) and short wavelength of 3 to 30 meters. (05 Mar 2000) |
| surgical diathermy | Electrocoagulation with a high frequency electrocautery, resulting in local tissue destruction; usually used to seal blood vessels and arrest bleeding. Synonym: diathermocoagulation. (05 Mar 2000) |
| diathermy | <procedure, surgery> The heating of the body tissues due to their resistance to the passage of high-frequency electromagnetic radiation, electric currents or ultrasonic waves. In medical diathermy (thermopenetration) the tissues are warmed but not damaged, in surgical diathermy (electrocoagulation) tissue is destroyed. Origin: Gr. Therm = heat (18 Nov 1997) |
| ultrashortwave diathermy | Shortwave diathermy in which the wavelength is under 10 meters. (05 Mar 2000) |