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noun B1 Intermediate Common

radiation

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Radiation (noun) means the way something spreads outward from a point or surface, similar to rays of light fanning out. Example: “The radiation of light from the lamp lit up the whole garden.”

noun
1
The way something spreads outward from a point or surface, similar to rays of light fanning out.
"The radiation of love from the crowd was addictive to the young singer-songwriters."
"The radiation of light from the lamp lit up the whole garden."
"Doctors noted the radiation of pain from his chest down his arm."
"The radiation of streets from the central square makes the town easy to navigate."
2
A short way of saying 'electromagnetic radiation'.
"Sunscreen helps protect your skin from harmful radiation from the sun."
"Microwave ovens use radiation to heat food quickly."
"Some window glass blocks radiation, which keeps the room cooler."
3
The process by which waves or particles spread out from a source.
"Heat loss by radiation is why a bare room feels cold at night."
"The radiation of sound waves from the speaker fills the whole hall."
"Scientists measured the radiation of particles coming from the sample."
4
Energy that moves outward from a source and travels through space or a substance.
"The fire gives off radiation that you can feel on your face."
"Radiation travels through empty space, which is how we feel the sun's warmth."
"Thick lead walls absorb the radiation inside the hospital's scanning room."
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Can you complete this real example?

The _____ of light from the lamp lit up the whole garden.

Etymology

Borrowed from Latin radiatio, radiationis. By surface analysis, it is formed from radiate plus -ion.

radioactivity irradiation radiotherapy actinotherapy

Related words

Rhymes for radiation

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Frequently asked questions

What is the meaning of radiation?
"radiation" (noun) means the way something spreads outward from a point or surface, similar to rays of light fanning out.
What is another word for radiation?
Other words for "radiation" include radioactivity, irradiation, radiotherapy, actinotherapy.
What are the different meanings of radiation?
"radiation" has 3 main meanings: 1. The way something spreads outward from a point or surface, similar to rays of light fanning out; 2. A short way of saying 'electromagnetic radiation'; 3. The process by which waves or particles spread out from a source.
How do you use radiation in a sentence?
Example: "The radiation of light from the lamp lit up the whole garden."

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