irradiation
noun.
the condition of being exposed to radiation
noun.
a column of light (as from a beacon)
noun.
(physiology) the spread of sensory neural impulses in the cortex
noun.
the apparent enlargement of a bright object when viewed against a dark background
noun.
(Pavolvian conditioning) the elicitation of a conditioned response by stimulation similar but not identical to the original stimulus
noun.
(medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance