Definition of irradiating:
(v) :
(transitive) To send out (heat, light, or some other form of radiation) in the form of rays; to radiate.
(v) :
(transitive) (technology) To apply radiation other than visible light to (someone or something).
(v) :
(transitive) To treat (food) with ionizing radiation to destroy pathogens.
(v) :
(transitive) (medicine) To treat (a patient, or a cancerous growth or tumour) with radiation.
(adj) :
Made brilliant or bright; irradiated, illuminated.
(adj) :
(figurative) Made splendid or wonderful.