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# radiation

noun (radiation)

«radiation» in the English dictionary: everyday — its meanings, how the lessons use it, and examples, each with its tree on Mova.

## Everyday

1. Radiation is energy that travels as invisible waves or tiny particles, like light, heat, X-rays and radio waves. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/R/radiation/#m1)
2. Radiation often means the dangerous kind given off by radioactive things, which can harm living things in large amounts. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/R/radiation/#m2)
3. Radiation is a medical treatment for some cancers that uses strong rays. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/R/radiation/#m3)

### In the lessons

In science lessons heat moves by conduction, convection and radiation; the Sun warms the Earth by radiation. In health: sun's UV radiation causes sunburn, so wear sun cream. In medicine: X-rays and radiation treatment. Phrases: UV radiation, heat radiation, radiation sickness.

### Examples

- The Sun's heat reaches us by radiation. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/R/radiation/#x1)
- UV radiation from the sun can burn your skin. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/R/radiation/#x2)
- X-rays are a kind of radiation. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/R/radiation/#x3)
- A fire warms you by radiation. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/R/radiation/#x4)
- The sign warned of radiation danger. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/R/radiation/#x5)
- Her aunt had radiation treatment in hospital. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/R/radiation/#x6)
- Mobile phones use radio waves, a weak radiation. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/R/radiation/#x7)
- Dark clothes absorb more radiation from the sun. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/R/radiation/#x8)

### Note

Uncountable. Verb: radiate. Myth: not all radiation is dangerous; light and radio waves are radiation too. Short forms: rads (unit), radiotherapy (UK medical word).

## On Mova

- [Trees and pragmatics of «radiation» in the school dictionary](https://mova.elamur.ai/free/en/corpora/dictionaries/school/R/radiation/): every meaning and example parsed by Mova, with its dependency tree and frames.
- [«radiation» in the school dictionary](https://mova.elamur.ai/free/en/dictionaries/school/w/radiation.html) on Mova free.