Irradiation
[ɪ,reɪdɪ'eɪʃ(ə)n] or [ɪ,redɪ'eʃən]
Definition
(noun.) (Pavolvian conditioning) the elicitation of a conditioned response by stimulation similar but not identical to the original stimulus.
(noun.) the apparent enlargement of a bright object when viewed against a dark background.
(noun.) (physiology) the spread of sensory neural impulses in the cortex.
(noun.) the condition of being exposed to radiation.
Edited by Estelle--From WordNet
Definition
(n.) Act of irradiating, or state of being irradiated.
(n.) Illumination; irradiance; brilliancy.
(n.) Fig.: Mental light or illumination.
(n.) 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.
Checker: Velma
Examples
- The light raised by her breath had been very fitful, and a momentary irradiation of flesh was all that it had disclosed of her face. Thomas Hardy. The Return of the Native.
- A woman who was sitting inside the cottage had seen and recognized her in that momentary irradiation. Thomas Hardy. The Return of the Native.
Edited by Dorothy