microwave

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microwave

 [mi´kro-wāv]
a wave typical of electromagnetic radiation between far infrared and radiowaves.

microwave

/mi·cro·wave/ (-wāv) a wave of electromagnetic radiation between far infrared and radio waves, regarded as extending from 300,000 to 100 megahertz (wavelength of 1 mm to 30 cm).

microwave

Etymology: Gk, mikros + AS, wafian, wave
electromagnetic radiation with a wavelength of 1 mm to 30 cm.

microwave

A 1–100 gigaHerz (109) wave on the electromagnetic spectrum with a wavelength of 1–1000 mm.

Public health
Exposure to microwaves is linked to domestic microwave ovens; leakage of infrared waves ranges from 1 milliWatt/cm2 at the time of sale of a microwave oven to 5 mW/cm2, measured at a distance of 2 inches. Older pacemakers tended to misfire when the wearer was exposed to early microwave ovens, which were also linked to an increase in cataracts.
 
Hazards
Mechanical—eggs and popcorn are particularly hazardous, as they can explode, and the microwaving of metallic objects can result in a fire hazard.
  
There is little data to suggest that microwave exposure is associated with increased morbidity.

microwave

Therapeutics Deep heat therapy The administration of electromagnetic waves that pass between electrodes placed on the Pt's skin, creating heat that ↑ blood flow and relieves muscle and joint pain

microwave

a wave typical of electromagnetic radiation between far infrared and radiowaves.

microwave acupuncture
utilizes deeply penetrating heat, produced by a microwave generator and transmitted via acupuncture needles.
References in periodicals archive ?
In fact, one of the findings in the AGED's "Microwave Tubes: Meeting the DOD Requirement" report was "that microwave tube manufacturers cannot satisfy the quick-reaction, short-run, high-yield production orders that will characterize the armed services' procurements in the future with current methodologies and remain viable.
It is interesting to note that although currently two of the largest factors in the microwave tube industry, namely, Litton and Varian, both had their beginnings as microwave tube manufacturers, today, microwave tubes now constitute between 2% and 10% of those companies' business.
The down-sizing of the military, the reduced tempo of operations and significant reliability improvements have sharply reduced the DOD's microwave tube procurements.
Methodologies exist which should permit the industry to satisfactorily meet the quick-reaction, high-yield, short-production-run procurements that will probably characterize future DOD microwave tube requirements.
Microwave tubes powered both the ECM systems that protected our planes and the airborne fire control radars that enabled the precision bombing that so quickly neutralized Iraqi defenses.
The effective performance of our armed forces is now and for the foreseeable future will be irrevocably linked to the performance and availability of microwave tubes.
Microwave tubes based on this kind of radiation, including TWTs, BWOs, orotrons and others, are often termed Cherenkov devices.
D) M-Type Devices: M-Type devices are microwave tubes in which electrons move in crossed external electric and magnetic fields.
Among microwave tubes based on electron bremsstrahlung radiation in a constant magnetic field, the most common are CRMs or gyrodevices.
Presolicitation: Engineering services in support of the aegis mk99 fire control system transmitter groups an/spy-1a/b/b(v)/d/d(v) radars and ancillary equipment including aegis microwave tubes (mwt).
Many consider gallium nitride as a possible successor to microwave tubes, especially the lower-powered traveling wave tubes," notes Wilson.
Industrial ceramic products include parts for cutting tools and oil drilling, furnace liners and crucibles for processing silicon, seals and bearings for fluid handling, evaporation boats for metallizing, parts for high-temperature foundry furnaces, side dams for thin-strip steel casting, components for microwave tubes, and starting powders for manufacturing ceramic materials.

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