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

1. The body cannot tolerate such large amounts of radiation.
   身體經(jīng)不住那麼大劑量的放射線。
2. The mutations in plants caused by radiation have been found in experiments.
   放射線引起植物變異已在實驗中被證實。
3. Radiation reached unheard-of levels.
   輻射作用已達到前所未有的程度。
4. The most terrifying aspect of nuclear bombing is radiation.
   核彈轟炸最可怕的一面是輻射。
5. Dutch physicist. He shared a1902 Nobel Prize for researching the influence of magnetism on radiation.
   洛倫茨，亨德里克1853－1928荷蘭物理學(xué)家。因在磁性對放射的影響方面的研究而獲1902年諾貝爾獎
6. In the accident, the workers received a heavy dose of radiation.
   在這次事故中，工人受到大劑量的輻射。
7. The news of the radiation leak caused widespread public alarm.
   輻射泄露的消息引起了公眾的普遍恐慌。

ra.di.a.tion

n.（名詞）
The act or process of radiating:
放射：放射的行動或過程：
例句：
the radiation of heat and light from a burning body.
從一個燃燒物發(fā)出的熱和光

Physics
【物理學(xué)】
Emission and propagation of energy in the form of rays or waves.
發(fā)射：以光線或波的形式發(fā)出和傳播能量
Energy radiated or transmitted in the form of rays, waves, or particles.
輻射：以射線、波或微粒的形式放射或傳播的能量
A stream of particles or electromagnetic waves emitted by the atoms and molecules of a radioactive substance as a result of nuclear decay.
核衰變產(chǎn)生的微?；螂姶挪ǎ悍派湮锏脑踊蚍肿佑捎诤怂プ兎懦龅囊皇⒘；螂姶挪?/br>Anatomy Radial arrangement of parts, as of a group of nerve fibers connecting different areas of the brain.
【解剖學(xué)】 輻射狀：輻射狀排列的部分，如聯(lián)系大腦不同部分的一組神經(jīng)纖維

Ecology The spread of a group of organisms into new habitats.
【生態(tài)學(xué)】 分散：組織群落新的產(chǎn)地的擴展
Adaptive radiation.
適應(yīng)性輻射