English dictionary
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English noun: radiation | |||
| 1. | radiation (phenomenon) energy that is radiated or transmitted in the form of rays or waves or particles | ||
| Broader (hypernym) | energy, free energy | ||
| Narrower (hyponym) | cosmic radiation, electromagnetic radiation, electromagnetic wave, ionizing radiation, nonparticulate radiation, solar radiation | ||
| 2. | radiation (act) the act of spreading outward from a central source | ||
| Broader (hypernym) | emanation, emission | ||
| Narrower (hyponym) | bombardment | ||
| 3. | radiation (state) syndrome resulting from exposure to ionizing radiation (e.g., exposure to radioactive chemicals or to nuclear explosions); low doses cause diarrhea and nausea and vomiting and sometimes loss of hair; greater exposure can cause sterility and cataracts and some forms of cancer and other diseases; severe exposure can cause death within hours | ||
| Samples | He was suffering from radiation. | ||
| Synonyms | radiation sickness, radiation syndrome | ||
| Broader (hypernym) | syndrome | ||
| 4. | radiation (process) the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay | ||
| Synonyms | radioactivity | ||
| Broader (hypernym) | emission | ||
| Narrower (hyponym) | corpuscular radiation, particulate radiation | ||
| 5. | radiation (event) the spread of a group of organisms into new habitats | ||
| Broader (hypernym) | action, activity, natural action, natural process, spread, spreading | ||
| Narrower (hyponym) | adaptive radiation | ||
| 6. | radiation (body) a radial arrangement of nerve fibers connecting different parts of the brain | ||
| Broader (hypernym) | neural structure | ||
| 7. | radiation (act) (medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance | ||
| Synonyms | actinotherapy, irradiation, radiation therapy, radiotherapy | ||
| Broader (hypernym) | therapy | ||
| Narrower (hyponym) | Curietherapy, phototherapy, radium therapy, X-ray therapy | ||
| Domain category | medical specialty, medicine | ||
Based on WordNet 3.0 copyright © Princeton University.
Web design: Orcapia v/Per Bang. English edition: .
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Web design: Orcapia v/Per Bang. English edition: .
2024 onlineordbog.dk