verb

irradiate

to irradiate, to expose to radiation, to illuminate

The food is irradiated to kill bacteria.

The food is irradiated to kill bacteria.

The sun irradiates the whole valley.

The sun irradiates the whole valley.

((sth.)) ((with sth.)) to expose (sth.) to (sth., e.g. radiation) They irradiate the fruit with gamma rays.

Synonyms: illuminate, expose, shine upon

From Latin 'irradiare', from 'in-' (in, upon) + 'radiare' (to shine), from 'radius' (ray).

Think of 'in-radiate' – to shine 'in' or 'upon' something. Like a radio sending out rays.

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