Definitions for microwaves
mi·crowaves

WikipediaRate this definition:0.0 / 0 votes

1. microwaves

   Microwave is a form of electromagnetic radiation with wavelengths ranging from about one meter to one millimeter corresponding to frequencies between 300 MHz and 300 GHz respectively. Different sources define different frequency ranges as microwaves; the above broad definition includes both UHF and EHF (millimeter wave) bands. A more common definition in radio-frequency engineering is the range between 1 and 100 GHz (wavelengths between 0.3 m and 3 mm). In all cases, microwaves include the entire SHF band (3 to 30 GHz, or 10 to 1 cm) at minimum. Frequencies in the microwave range are often referred to by their IEEE radar band designations: S, C, X, Ku, K, or Ka band, or by similar NATO or EU designations. The prefix micro- in microwave is not meant to suggest a wavelength in the micrometer range. Rather, it indicates that microwaves are "small" (having shorter wavelengths), compared to the radio waves used prior to microwave technology. The boundaries between far infrared, terahertz radiation, microwaves, and ultra-high-frequency radio waves are fairly arbitrary and are used variously between different fields of study. Microwaves travel by line-of-sight; unlike lower frequency radio waves, they do not diffract around hills, follow the earth's surface as ground waves, or reflect from the ionosphere, so terrestrial microwave communication links are limited by the visual horizon to about 40 miles (64 km). At the high end of the band, they are absorbed by gases in the atmosphere, limiting practical communication distances to around a kilometer. Microwaves are widely used in modern technology, for example in point-to-point communication links, wireless networks, microwave radio relay networks, radar, satellite and spacecraft communication, medical diathermy and cancer treatment, remote sensing, radio astronomy, particle accelerators, spectroscopy, industrial heating, collision avoidance systems, garage door openers and keyless entry systems, and for cooking food in microwave ovens.

U.S. National Library of MedicineRate this definition:0.0 / 0 votes

1. Microwaves

   That portion of the electromagnetic spectrum from the UHF (ultrahigh frequency) radio waves and extending into the INFRARED RAYS frequencies.

How to pronounce microwaves?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say microwaves in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of microwaves in Chaldean Numerology is: 2

2. Pythagorean Numerology

   The numerical value of microwaves in Pythagorean Numerology is: 2

Examples of microwaves in a Sentence

1. Dong Yong-sueng:

   Samsung could not make even microwave ovens there. Why? The technology used in microwaves is the basis of missile guidance systems.

2. Dr Jaffe:

   Unfortunately, too, from a public relations standpoint, both microwaves and lasers have negative connotations for most people because they associate microwaves with the oven in their kitchen and lasers with science fiction space battles.

3. Mika Brzezinski:

   This is Kellyanne Conway talking about microwaves.

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References

1. ^ Wikipedia
   https://en.wikipedia.org/wiki/Microwaves