irradiate
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/ɪˈreɪdieɪt/
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/ɪˈreɪdieɪt/
To shine light or heat on something, or to treat something with radiation.
The sun irradiated the garden, making it warm and bright.
To treat food with gamma radiation to help it last longer.
The food was irradiated to preserve it for a longer time.
To make something look brighter or more cheerful.
The room was irradiated with colorful decorations.