microwave


microwave
microwaveable, adj.
/muy"kroh wayv'/, n., v., microwaved, microwaving.
n.
1. an electromagnetic wave of extremely high frequency, 1 GH3 or more, and having wavelengths of from 1 mm to 30 cm.
v.i.
3. to use a microwave oven.
v.t.
4. to cook, defrost, or otherwise prepare in a microwave oven.
[1930-35; MICRO- + WAVE]

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Portion of the electromagnetic spectrum that is situated between radio waves and infrared radiation.

Microwaves have wavelengths ranging from 30 cm to 1 mm, corresponding to frequencies from about 1 gigahertz (109 Hz) to 1 terahertz (1012 Hz). They are the principal carriers of television, telephone, and data transmissions between stations on Earth and between the Earth and satellites. Radar beams are short pulses of microwaves used to locate ships and planes, track weather systems, and determine the speeds of moving objects. Microwaves are absorbed by water and fat in foodstuffs and produce heat from the inside (see microwave oven). Materials such as glass and ceramics do not absorb microwaves, and metals reflect them. See also maser.

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▪ elecromagnetism
      electromagnetic radiation having a frequency within the range of 1 gigahertz to 1 terahertz (109–1012 cycles per second) and a wavelength between 1 mm and 1 m.

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Universalium. 2010.

Look at other dictionaries:

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  • microwave — (n.) type of electromagnetic wave, 1931, coined in English from MICRO (Cf. micro ) + WAVE (Cf. wave) (n.). First record of microwave oven is from 1961; microwave as short for this is attested from 1974; as a verb, from 1976 …   Etymology dictionary

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  • microwave — [v] cook bake, heat, melt, nuke*, warm up, zap*; concept 170 …   New thesaurus

  • Microwave — This article is about the electromagnetic wave. For the cooking appliance, see Microwave oven. For other uses, see Microwaves (disambiguation). A microwave telecommunications tower on Wrights Hill in Wellington, New Zealand Microwaves, a subset… …   Wikipedia

  • microwave — I UK [ˈmaɪkrəˌweɪv] / US noun [countable] Word forms microwave : singular microwave plural microwaves * 1) microwave or microwave oven an oven that cooks food very quickly by passing electricity through it, instead of using heat 2) science a type …   English dictionary

  • microwave — mi|cro|wave1 [ˈmaıkrəweıv] n 1.) also .microwave oven a type of ↑oven that cooks food very quickly using very short electric waves instead of heat ▪ I ll heat it up in the microwave. 2.) a very short electric wave that is used in cooking food and …   Dictionary of contemporary English

  • microwave — mi|cro|wave1 [ maıkrə,weıv ] noun count * 1. ) microwave or microwave oven an oven that cooks food very quickly by passing electricity through it, instead of by heat 2. ) a type of ELECTROMAGNETIC wave: microwave radiation microwave mi|cro|wave 2 …   Usage of the words and phrases in modern English

  • microwave — [[t]ma͟ɪkroʊweɪv[/t]] microwaves, microwaving, microwaved 1) N COUNT A microwave or a microwave oven is an oven which cooks food very quickly by electromagnetic radiation rather than by heat. 2) VERB To microwave food or drink means to cook or… …   English dictionary

  • microwave — 1. noun /ˈmaɪkrəˌweɪv,ˈmaɪkrəʊˌweɪv/ a) An electromagnetic wave with wavelength between that of infrared light and radio waves. b) A microwave oven. See Also: microwave proof 2. verb /ˈmaɪkrəˌweɪv,ˈmaɪkrəʊˌweɪv/ To cook ( …   Wiktionary


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