Nouns

(n)irradiationthe condition of being exposed to radiation
(n)irradiation(physiology) the spread of sensory neural impulses in the cortex
(n)irradiationthe apparent enlargement of a bright object when viewed against a dark background
(n)irradiation(Pavolvian conditioning) the elicitation of a conditioned response by stimulation similar but not identical to the original stimulus
(n)radiotherapy, radiation therapy, radiation, actinotherapy, irradiation(medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance