1.To throw rays of light upon; to illuminate; to brighten; to adorn with luster. "Thy smile irradiates yon blue fields."
2.To enlighten intellectually; to illuminate; as, to irradiate the mind.
3.To animate by heat or light.
4.To radiate, shed, or diffuse. "A splendid façade,... irradiating hospitality."
5.To expose to radiation of any kind, especially ionizing radiation; as, to sterilize food by irradiating it with gamma rays; one can cause mutations in bacteria by irradiating them with ultraviolet light.
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