radiation Meaning in the Cambridge Learner’s Dictionary
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Meaning of “radiation” - Learner’s Dictionary

radiation

noun [U]
 
 
/ˌreɪdiˈeɪʃən/
HARMFUL ENERGY a form of energy that comes from a nuclear reaction and that in large amounts can be very dangerous: dangerously high levels of radiation radiation sicknessPhysics in general
HEAT energy from heat or light that you cannot see: solar/microwave radiationPhysics in general
(Definition of radiation from the Cambridge Learner’s Dictionary © Cambridge University Press)
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