electromagnetic spectrum

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electromagnetic spectrum
electromagnetic spectrum frequencies in hertz
A. gamma rays
B. x-rays
C. ultraviolet rays
D. visible light
E. infrared rays
F. microwaves
G. radio waves

electromagnetic spectrum

n.
The entire range of electromagnetic radiation, which includes, in order of increasing frequency and decreasing wavelength, radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, x-rays, and gamma rays.

electromagnetic spectrum

n
(General Physics) the complete range of electromagnetic radiation from the longest radio waves (wavelength 105 metres) to the shortest gamma radiation (wavelength 10–13 metre)

elec′tromagnet′ic spec′trum


n.
the entire continuous spectrum of all forms of electromagnetic radiation, from gamma rays to long radio waves.
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electromagnetic spectrum
The electromagnetic spectrum can be measured in frequencies or in wavelengths. This diagram measures wavelengths in meters, ranging from the longest wavelengths (radio waves) to the shortest (gamma rays). Visible light, which is a band of colors from red to violet, is the only portion of the spectrum that can be seen by the human eye.

electromagnetic spectrum

The entire range of electromagnetic radiation. At one end of the spectrum are gamma rays, which have the shortest wavelengths and high frequencies. At the other end are radio waves, which have the longest wavelengths and low frequencies. Visible light, with intermediate wavelengths and frequencies, is near the center of the spectrum.

electromagnetic spectrum

The range of frequencies of electromagnetic radiation from zero to infinity. It is divided into 26 alphabetically designated bands. See also electronic warfare.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.electromagnetic spectrum - the entire frequency range of electromagnetic waves
radio frequency - an electromagnetic wave frequency between audio and infrared
extremely low frequency, ELF - below 3 kilohertz
very low frequency, VLF - 3 to 30 kilohertz
LF, low frequency - 30 to 300 kilohertz
medium frequency, MF - 300 to 3000 kilohertz
high frequency, HF - 3 to 30 megahertz
very high frequency, VHF - 30 to 300 megahertz
UHF, ultrahigh frequency - 300 to 3000 megahertz
SHF, superhigh frequency - 3 to 30 gigahertz
EHF, extremely high frequency - 30 to 300 gigahertz
spectrum - an ordered array of the components of an emission or wave
actinic radiation, actinic ray - electromagnetic radiation that can produce photochemical reactions
gamma radiation, gamma ray - electromagnetic radiation emitted during radioactive decay and having an extremely short wavelength
infrared spectrum - the spectrum of infrared radiation
light, visible light, visible radiation - (physics) electromagnetic radiation that can produce a visual sensation; "the light was filtered through a soft glass window"
line - a single frequency (or very narrow band) of radiation in a spectrum
microwave - a short electromagnetic wave (longer than infrared but shorter than radio waves); used for radar and microwave ovens and for transmitting telephone, facsimile, video and data
microwave spectrum - the part of the electromagnetic spectrum corresponding to microwaves
radio spectrum, radio-frequency spectrum - the entire spectrum of electromagnetic frequencies used for communications; includes frequencies used for radio and radar and television
ultraviolet spectrum - the spectrum of ultraviolet radiation
color spectrum, visible spectrum - the distribution of colors produced when light is dispersed by a prism