Wordiyoradioactivity
🇬🇧 UK/.reidiәuæk'tiviti/🇺🇸 US
C1
Definitions
n.
The spontaneous emission of ionizing radiation from unstable atomic nuclei.
放射性；放射现象
🧩 Root Breakdown
Root-derivedradioactivestem
+
itystate, quality, condition
=radioactivity
Common Collocations
- 1.natural radioactivity天然放射性
- 2.level of radioactivity放射性水平
- 3.measure radioactivity测量放射性
- 4.[induced radioactivity]人工放射性
Example Sentences
- 1.
Scientists measured elevated levels of radioactivity near the damaged reactor.
- 2.
Marie Curie's pioneering research on radioactivity earned her two Nobel Prizes.
- 3.
Low levels of natural radioactivity are present in soil, water, and even the human body.