radiation

B1 Topic:Astronomy & Space

US /ˌɹæɪ.diˈæɪ.ʃən/ UK /ˌɹeɪ.diˈeɪ.ʃən/ See IPA manual

Freq #4417

Meanings

1

noun
Energy that travels as rays, waves, or particles, such as heat or light.

Too much radiation from the sun can damage your skin.
2

noun
Dangerous energy released by radioactive substances.

People were warned to stay away because of the radiation from the plant.
3

noun
Medical treatment that uses rays to destroy harmful cells, especially in cancer.

After surgery, she had several weeks of radiation.

Thesaurus

Synonyms

3 noun · medical treatment that uses... radiotherapy

Word family

Forms radiations

Derived forms antiradiationbioradiationchemoradiationeradiationmicrowave-radiationpostradiationpreradiationradiationalradiationistradiationlessradiationlikeradiationproof

Related forms nucleomitophobiaradiate radiative

Appears in

Phrases (1)

See all

alpha radiation
radiation consisting of alpha particles released during radioactive decay

Noun + noun

Etymology

Borrowed from Latin radiatio, radiationis. By surface analysis, radiate + -ion.

radiatio Latin

View etymology graph ->

Topics

Astronomy & Space Physics Abstract Ideas

External links

# radiation

**Type:** Word
**Level:** B1
**Part of speech:** noun
**IPA (US):** /ˌɹæɪ.diˈæɪ.ʃən/
**IPA (UK):** /ˌɹeɪ.diˈeɪ.ʃən/
**Frequency rank:** 4417

## Meanings
1. Energy that travels as rays, waves, or particles, such as heat or light.
2. Dangerous energy released by radioactive substances.
3. Medical treatment that uses rays to destroy harmful cells, especially in cancer.

## Examples
- Too much radiation from the sun can damage your skin.
- People were warned to stay away because of the radiation from the plant.
- After surgery, she had several weeks of radiation.

## Derived Forms
- antiradiation
- bioradiation
- chemoradiation
- eradiation
- microwave-radiation
- postradiation
- preradiation
- radiational
- radiationist
- radiationless
- radiationlike
- radiationproof

## Related Forms
- nucleomitophobia
- radiate
- radiative

## Roots and Affixes
- Root: radiatio

## Etymology
Borrowed from Latin radiatio, radiationis. By surface analysis, radiate + -ion.

## AI Etymology
Radiation is borrowed from Latin radiatio, radiationis. By surface analysis, radiate + -ion. Modern senses include energy that travels as rays, waves, or particles, such as heat or light. and dangerous energy released by radioactive substances.. The wider word family includes derivatives such as antiradiation, bioradiation, chemoradiation, eradiation, microwave-radiation, and postradiation and related forms such as nucleomitophobia, radiate, and radiative.

## Topics
- Astronomy & Space
- Physics
- Abstract Ideas

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