|
Irradiation - Dictionary Definition and Overview |
|
Irradiation : (noun)
1: the condition of being exposed to radiation
2: a column of light (as from a beacon) [syn: beam, beam of
light, light beam, ray, ray of light, shaft, shaft
of light]
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 [syn: radiotherapy,
radiation therapy, radiation, actinotherapy]
Based on WordNet 2.0
|
|
Irradiation : \Ir*ra`di*a"tion\, n. [Cf. F. irradiation.]
1. Act of irradiating, or state of being irradiated.
2. Illumination; irradiance; brilliancy. --Sir W. Scott.
3. Fig.: Mental light or illumination. --Sir M. Hale.
4. (Opt.) 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.
Based on Webster's Revised Unabridged Dictionary
|
|
Irradiation : Irradiation: The use of high-energy x-ray therapy.
Based on Webster's Revised Unabridged Dictionary (1913)
|
|
|
|
|
