ELECTROMAGNETIC RADIATION

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 Dictionary entry overview: What does electromagnetic radiation mean? 

• ELECTROMAGNETIC RADIATION (noun)
  The noun ELECTROMAGNETIC RADIATION has 1 sense:

1. radiation consisting of waves of energy associated with electric and magnetic fields resulting from the acceleration of an electric charge

  Familiarity information: ELECTROMAGNETIC RADIATION used as a noun is very rare.

 Dictionary entry details 

• ELECTROMAGNETIC RADIATION (noun)

Sense 1

Meaning:

Radiation consisting of waves of energy associated with electric and magnetic fields resulting from the acceleration of an electric charge

Classified under:

Nouns denoting natural phenomena

Synonyms:

electromagnetic radiation; electromagnetic wave; nonparticulate radiation

Hypernyms ("electromagnetic radiation" is a kind of...):

radiation (energy that is radiated or transmitted in the form of rays or waves or particles)

Meronyms (parts of "electromagnetic radiation"):

photon (a quantum of electromagnetic radiation; an elementary particle that is its own antiparticle)

Hyponyms (each of the following is a kind of "electromagnetic radiation"):

actinic radiation; actinic ray (electromagnetic radiation that can produce photochemical reactions)

beam; electron beam; ray (a group of nearly parallel lines of electromagnetic radiation)

black-body radiation; blackbody radiation (the electromagnetic radiation that would be radiated from an ideal black body; the distribution of energy in the radiated spectrum of a black body depends only on temperature and is determined by Planck's radiation law)

gamma radiation; gamma ray (electromagnetic radiation emitted during radioactive decay and having an extremely short wavelength)

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)

radio emission; radio radiation; radio wave (an electromagnetic wave with a wavelength between 0.5 cm to 30,000 m)

roentgen ray; X-radiation; X-ray; X ray (electromagnetic radiation of short wavelength produced when high-speed electrons strike a solid target)

 Context examples 

They give off radio-frequency energy (RF), a form of electromagnetic radiation.

(Electromagnetic Fields, NIH: National Institute of Environmental Health Sciences)

Fluorescein responds to electromagnetic radiation between the wavelengths of 465-490 nm and fluoresces, emitting light at wavelengths of 520-530 nm that can be detected visually.

(Fluorescein Sodium Injection, NCI Thesaurus)

Issue associated with a measure of electromagnetic radiation from equipment.

(Electromagnetic Interference Associated with Medical Device, Food and Drug Administration)

Electromagnetic radiation can vary in strength from low energy to high energy.

(Electromagnetic radiation, NCI Dictionary)

A photographic material designed to capture an image upon exposure to electromagnetic radiation.

(Film Device Component, NCI Thesaurus)

High-energy, short wavelength, ionizing electromagnetic radiation emitted from the nucleus.

(Gamma Radiation, NCI Thesaurus)

Electromagnetic radiation with wavelengths between 750 nanometers and 1 millimeter, between those of visible light and microwaves.

(Infrared Radiation, NCI Thesaurus)

Electromagnetic radiation which does not produce ions in matter through which it passes.

(Nonionizing Radiation, NCI Thesaurus)

An instrument that focuses high energy electromagnetic radiation toward a sample and measures the resulting X-rays emitted.

(Energy Dispersive Spectrometer, NCI Thesaurus)

An electric or optical device designed to focus electromagnetic radiation.

(Lens Device Component, NCI Thesaurus)