radioactive
UK/.reidiәu'æktiv/US
B2
Definitions
adj.
Giving off radiation from the breakdown of unstable atomic nuclei
放射性的，有辐射的
Root Breakdown
Root-derivedradio- (radiation) + active = actively giving off radiation. A modern scientific compound; the 'active' part keeps the act = 'doing/emitting' sense.
Root act still carries 59 more wordsCommon Collocations
- 1.radioactive waste放射性废料
- 2.radioactive decay放射性衰变
- 3.radioactive material放射性物质
Example Sentences
- 1.
Radioactive waste must be stored safely for centuries.