Irradiation
WordNet
noun
(1) (medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance
(2) (Pavolvian conditioning) the elicitation of a conditioned response by stimulation similar but not identical to the original stimulus
(3) The apparent enlargement of a bright object when viewed against a dark background
(4) (physiology) the spread of sensory neural impulses in the cortex
(5) A column of light (as from a beacon)
(6) The condition of being exposed to radiation
WiktionaryText
Noun
- act of irradiating, or state of being irradiated.
- illumination; irradiance; brilliancy.
- fig.: mental light or illumination.
- the apparent enlargement of a bright object seen upon a dark ground, due to the fact that the portions of the retina around the image are stimulated by the intense light; as when a dark spot on a white ground appears smaller, or a white spot on a dark ground larger, than it really is, esp. when a little out of focus.
- a process of sterilisation whereby radiation is passed through a bag containing food, utensils, etc., to sterilise the contents.