radium
UK/'reidiәm/US
B2
Definitions
n.
A rare, highly radioactive metallic element (symbol Ra), discovered by the Curies
镭（稀有的强放射性金属元素，符号 Ra）
Root Breakdown
Root-derivedradi (ray) + -um (element-name suffix) = 'the ray-giver.' The Curies named it for the strong rays it constantly pours out—it is intensely radioactive.
Root radi still carries 9 more wordsCommon Collocations
- 1.radium poisoning镭中毒
- 2.radium therapy镭疗法
- 3.radioactive radium放射性镭
Example Sentences
- 1.
Marie Curie won two Nobel Prizes, partly for discovering radium.