irradiation

[ih-rey-dee-ey-shuhn]

noun

1. the act of irradiating.

2. the state of being irradiated.

3. intellectual or spiritual enlightenment.

4. a ray of light; beam.

5. Optics.,  the apparent enlargement of an object when seen against a dark background.

6. the use of x-rays or other forms of radiation for the treatment of disease, the making of x-ray photographs, the manufacture of vitamin D, etc.

7. exposure or the process of exposure to x-rays or other radiation.

8. Physics.,  irradiance.

irradiation

/ ɪˌreɪdɪˈeɪʃən /

noun

1. the act or process of irradiating or the state of being irradiated

2. the apparent enlargement of a brightly lit object when it is viewed against a dark background

3. a shaft of light; beam or ray

4. med

   1. the therapeutic or diagnostic use of radiation, esp X-rays

   2. exposure of a patient to such radiation

5. another name for radiation irradiance

Other Word Forms

• postirradiation adjective

Word History and Origins

Origin of irradiation¹

First recorded in 1580–90, irradiation is from the Late Latin word irradiātiōn- (stem of irradiātiō ). See ir- ¹, radiation

Example Sentences

Another possibility was that the aurora was due to resonant scattering of nitrogen molecular ions caused by sunlight irradiation.

From Science Daily

This study is the first to show that such plasma irradiation can accelerate tendon repair.

From Science Daily

"Looking years into the future, there's a possibility that ion irradiation can be used to deliberately introduce defects into materials and manipulate them," he said.

From Science Daily

Zeolites can become amorphous when subjected to electron beam irradiation, but that damage is related to the composition of the zeolite, and the team found that some pollucite inclusions were stable in the electron beam.

From Science Daily

Aiming to shorten recovery times, an Osaka Metropolitan University-led research group is focusing on plasma irradiation as a treatment method to speed up bone healing.

From Science Daily

Related Words

• bulb 
• candle 
• daylight 
• flash 
• glare 
• glow 
• lamp 
• lantern 
• radiation 
• ray 
• star 
• sun 
• sunshine 
• window