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