n.
1.the condition of being exposed to radiation
2.a column of light (as from a beacon)
3.(physiology) the spread of sensory neural impulses in the cortex
4.the apparent enlargement of a bright object when viewed against a dark background
5.(Pavolvian conditioning) the elicitation of a conditioned response by stimulation similar but not identical to the original stimulus
6.(medicine) the treatment of disease (especially cancer) by exposure to radiation from a radioactive substance
Idiom of the Day
get behind (a person or idea)
to support or help someone or something
Many people wanted to get behind the candidate who promised to cut taxes.