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Definition of Irradiation
1. Noun. The condition of being exposed to radiation.
2. Noun. A column of light (as from a beacon).
Specialized synonyms: Heat Ray, High Beam, Moon Ray, Moon-ray, Moonbeam, Sunbeam, Sunray, Laser Beam, Low Beam
Generic synonyms: Light, Visible Light, Visible Radiation
Derivative terms: Beam, Beamy, Irradiate, Ray
3. Noun. (physiology) the spread of sensory neural impulses in the cortex.
4. Noun. The apparent enlargement of a bright object when viewed against a dark background.
5. Noun. (Pavolvian conditioning) the elicitation of a conditioned response by stimulation similar but not identical to the original stimulus.
6. Noun. (medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance.
Generic synonyms: Therapy
Specialized synonyms: Phototherapy, Curietherapy, Radium Therapy, X-ray Therapy
Category relationships: Medical Specialty, Medicine
Derivative terms: Radiotherapist
Definition of Irradiation
1. n. Act of irradiating, or state of being irradiated.
Definition of Irradiation
1. Noun. An act of irradiating, or state of being irradiated. ¹
2. Noun. (obsolete) illumination; irradiance; brilliance. ¹
3. Noun. (obsolete) fig.: mental light or illumination. ¹
4. Noun. (obsolete) 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, especially when a little out of focus. ¹
5. Noun. a process of sterilisation whereby radiation is passed through a bag containing food, utensils, etc., to sterilise the contents. ¹
¹ Source: wiktionary.com
Definition of Irradiation
1. [n -S]
Medical Definition of Irradiation
1. Treatment by ionising radiation, such as X-rays or radioactive sources such as radioactive iodine seeds. See: radiation therapy. (16 Dec 1997)