radiation

Word parts

radiate + -ion

Pronunciation

• IPA ^(key): /ˌreɪ.di.ˈeɪ.ʃən/

• Audio (UK)

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Noun

Singular radiation

Plural radiations

1. (physics) Radiation is the emission or transmission of energy in the form of waves or particles through space or through a material medium.

Related words

• radiate
• radiator