Synonym: actinotherapy, irradiation, radiation sickness, radiation syndrome, radiation therapy, radioactivity, radiotherapy. Similar words: tradition, traditional, traditionally, variation, graduation, negotiation, association, appreciation. Meaning: [‚reɪdɪ'eɪʃn] 
n. 1. energy that is radiated or transmitted in the form of rays or waves or particles 2. the act of spreading outward from a central source 3. 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 4. the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay 5. the spread of a group of organisms into new habitats 6. a radial arrangement of nerve fibers connecting different parts of the brain 7. (medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance.
n. 1. energy that is radiated or transmitted in the form of rays or waves or particles 2. the act of spreading outward from a central source 3. 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 4. the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay 5. the spread of a group of organisms into new habitats 6. a radial arrangement of nerve fibers connecting different parts of the brain 7. (medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance. 
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121. Medical therapy of diarrhoea caused by chronic radiation enteritis has been largely empirical and there have been no adequate controlled studies.
122. VDUs are suspected by some of causing eye strain, postural problems and even of spreading harmful radiation across the room.
123. He posited that radiation of the same kind as light could be produced directly by electricity.
124. Dispersive instruments use prisms or gratings to separate radiation of different frequencies, by refraction or diffraction.
125. People living near the Hanford site were exposed to doses of radiation.
126. It is formed when the sun's ultraviolet radiation breaks up the two atoms of oxygen molecules into single atoms.
127. Possible fluctuations of cancer incidence due to sources of radiation are swamped statistically by the numerous other causes.
128. The station, like any other object in orbit, lost energy through radiating it into space as infra-red electromagnetic radiation.
129. Certain women with negative lymph nodes, for example, might not need chemotherapy, radiation or hormone treatments following surgery.
130. Steroids inhibit the synthesis of all the eicosanoids; they reduce late radiation induced fibrosis in experimental models.
131. Whether it's against poison gas or pollution or radiation he can't say.
132. If ozone deterioration persisted, they warned, solar ultraviolet radiation would flood Earth.
133. One woman died despite intensive treatment and none had been exposed to radiation or other factors known to cause the disease.
134. Radiation, coming along shortly thereafter as a therapy method, reinforced this concept of cancer as a local body problem.
135. Images could be converted from light or other radiation to an analog electrical signal.
136. Operators received lethal doses of radiation while needlessly reconnecting the water supply to the devastated reactor.
137. As mentioned earlier the warm-white lighting contains little infra-red radiation.
138. Ultraviolet radiation could do the same job as the electrical discharge in their laboratory.
139. In this way the radiation loses energy,(http://sentencedict.com/radiation.html) which is imparted to the electrons of the material.
140. Harmful quantities of radiation are also released both before and after the uranium fuel enters the power station.
141. However, particularly for the gamma-ray contribution, more direct measurement of the radiation dose is usually employed.
142. The malignancies in children whose fathers were monitored for exposure to ionising radiation were not unusual.
143. So small volumes of lung tissue are exposed to high doses of alpha radiation.
144. All matter at temperatures above that of absolute zero emits infrared radiation.
145. Perkins also includes some useful material for experimental physicists such as stopping power and multiple scattering formulae and definition of radiation lengths.
146. A revealing difference between gravitational and electromagnetic radiation is that dipole radiation is absent in the gravitational case.
147. The network focuses on a single application: networking powerful computers to help doctors plan radiation therapy for cancer treatment.
148. But as the universe expanded, the temperature of the radiation decreased.
149. In all, 1.3 million people have been registered as suffering from diseases related to the radiation leak.
150. They stressed, however, that there had been no radiation leak at the plant, which is of the Chernobyl type.
More similar words: tradition, traditional, traditionally, variation, graduation, negotiation, association, appreciation, renunciation, nation, equation, formation, operation, national, relation, location, education, donation, zonation, isolation, summation, sensation, violation, allegation, situation, inflation, migration, educational, revelation, evaluation.