noun
- a unit of measurement for radioactivity
Usage: physics; scientific
Examples
- The radioactive sample measured 2.5 curies.
- Scientists use the curie to measure how much radiation a substance emits.
- One curie equals 37 billion radioactive decays per second.
- The laboratory stored materials with activity levels below 0.1 curie.
- Marie Curie’s discoveries led to the naming of this radioactivity unit.
- Modern instruments can detect radiation levels as low as a millicurie.