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1. Dictionary

   radiation

   /ˌreɪdɪˈeɪʃn/

   noun

   • 1. the emission of energy as electromagnetic waves or as moving subatomic particles, especially high-energy particles which cause ionization.
   • ▪ the energy transmitted by radiation: "background radiation"
   • 2. divergence out from a central point, in particular evolution from an ancestral animal or plant group into a variety of new forms: "evolution is a process of radiation not progression"

   Word Origin late Middle English (denoting the action of sending out rays of light): from Latin radiatio(n-), from radiare ‘emit rays’ (see radiate).

   Scrabble Points: 10

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2. People also ask

   What is radiation sickness?

   • Radiation sickness may occur in people who do not follow proper protocols in areas where exposure is possible. Exposure can cause cell damage in two different ways. In the first sense, direct radiation action, it harms a molecule directly; as for example when radiation interferes with a molecule of DNA, causing cell damage.

   What does Radiation do to Living Cells? (with pictures)

   www.wisegeek.com/what-does-radiation-do-to-living-cells.htm

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   Where does radiation come from?

   • Radiation comes from atoms, the basic building blocks of matter. These atoms are said to be ‘unstable’ or ‘radioactive’. An unstable atom has excess internal energy, with the result that the nucleus can undergo a spontaneous change towards a more stable form. This is called ‘radioactive decay’.

   How do you tell if a compound is stable or unstable?

   yoursageinformation.com/how-do-you-tell-if-a-compound-is-stable-or-unstable/

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   What is radiation in physics?

   • Radiation—Emission and propagation of wave form energy. A mode of heat transfer in which the energy travels very rapidly in straight lines without leaving the intervening space. Heat can be radiated through a vacuum, through many gases, and through some liquids and solids.

   Improving Process Heating System Performance: A Sourcbook for Indus…

   www1.eere.energy.gov/manufacturing/tech_assistance/pdfs/proc_heat_sourcebook.pdf

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3. www.britannica.com › science › radiationRadiation | Definition, Types, Effects, & Facts | Britannica

   www.britannica.com › science › radiation

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   Radiation, flow of atomic and subatomic particles and of waves, such as those that characterize heat rays, light rays, and X rays. All matter is constantly bombarded with radiation of both types from cosmic and terrestrial sources. This article delineates the properties and behaviour of radiation.

4. en.wikipedia.org › wiki › RadiationRadiation - Wikipedia

   en.wikipedia.org › wiki › Radiation

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   Radiation, in general, exists throughout nature, such as in light and sound. In physics, radiation is the emission or transmission of energy in the form of waves or particles through space or a material medium. [1] [2] This includes:

5. www.iaea.org › newscenter › newsWhat is Radiation? | IAEA - International Atomic Energy Agency

   www.iaea.org › newscenter › news

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   Jan 25, 2023 · Radiation is energy that moves in waves or particles. Learn about the different types of radiation, their benefits and risks, and how to protect yourself and the environment from their effects.

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6. Videos

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     3:17

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     Types Of Radiation | Radioactivity | Physics | FuseSchool

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     What Is Nuclear Radiation? | Radioactivity | Physics | FuseSchool

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7. www.merriam-webster.com › dictionary › radiationRadiation Definition & Meaning - Merriam-Webster

   www.merriam-webster.com › dictionary › radiation

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   1. a. : the action or process of radiating. b. : the process of emitting radiant energy in the form of waves or particles. c (1) : the combined processes of emission, transmission, and absorption of radiant energy. (2) : the transfer of heat by radiation compare conduction, convection. 2. a. : something that is radiated. b.

8. www.dictionary.com › browse › radiationRADIATION Definition & Meaning | Dictionary.com

   www.dictionary.com › browse › radiation

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   Streams of photons, electrons, small nuclei, or other particles. Radiation is given off by a wide variety of processes, such as thermal activity, nuclear reactions (as in fission), and by radioactive decay. The emission or movement of such particles through space or a medium, such as air.

9. www.ansto.gov.au › nuclear-facts › what-is-radiationWhat is radiation? - Australian Nuclear Science and ...

   www.ansto.gov.au › nuclear-facts › what-is-radiation

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   Radiation is energy or particles from a source that travel through space or other mediums. Learn about the different types of radiation, such as ionising radiation, and the natural and artificial sources of radiation in Australia.

10. www.collinsdictionary.com › english › radiationRADIATION definition and meaning | Collins English Dictionary

    www.collinsdictionary.com › english › radiation

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    Radiation is the flow of heat from one surface to another by infrared waves (= waves with a longer distance between them than waves of visible light). Solar cells generate electric power from the sun's radiation .