radiation

名词 radiation:

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
   同义词：radiation sickness, radiation syndrome
4. the spontaneous emission of a stream of particles or electromagnetic rays in nuclear decay
   同义词：radioactivity
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
   同义词：radiotherapy, radiation therapy, actinotherapy, irradiation

1. The body cannot tolerate such large amounts of radiation.
   身体经不住那麽大剂量的放射线。
2. The mutations in plants caused by radiation have been found in experiments.
   放射线引起植物变异已在实验中被证实。
3. Radiation reached unheard-of levels.
   辐射作用已达到前所未有的程度。
4. The most terrifying aspect of nuclear bombing is radiation.
   核弹轰炸最可怕的一面是辐射。
5. Dutch physicist. He shared a1902 Nobel Prize for researching the influence of magnetism on radiation.
   洛伦茨，亨德里克1853－1928荷兰物理学家。因在磁性对放射的影响方面的研究而获1902年诺贝尔奖
6. In the accident, the workers received a heavy dose of radiation.
   在这次事故中，工人受到大剂量的辐射。
7. The news of the radiation leak caused widespread public alarm.
   辐射泄露的消息引起了公众的普遍恐慌。

ra.di.a.tion

n.（名词）
The act or process of radiating:
放射：放射的行动或过程：
例句：
the radiation of heat and light from a burning body.
从一个燃烧物发出的热和光

Physics
【物理学】
Emission and propagation of energy in the form of rays or waves.
发射：以光线或波的形式发出和传播能量
Energy radiated or transmitted in the form of rays, waves, or particles.
辐射：以射线、波或微粒的形式放射或传播的能量
A stream of particles or electromagnetic waves emitted by the atoms and molecules of a radioactive substance as a result of nuclear decay.
核衰变产生的微粒或电磁波：放射物的原子或分子由于核衰变放出的一束微粒或电磁波
Anatomy Radial arrangement of parts, as of a group of nerve fibers connecting different areas of the brain.
【解剖学】 辐射状：辐射状排列的部分，如联系大脑不同部分的一组神经纤维

Ecology The spread of a group of organisms into new habitats.
【生态学】 分散：组织群落新的产地的扩展
Adaptive radiation.
适应性辐射