1. (noun) a unit of radioactivity equal to the amount of a radioactive isotope that decays at the rate of 37,000,000,000 disintegrations per second

• ci

2. (noun) French physicist; husband of Marie Curie (1859-1906)

• pierre curie

3. (noun) French chemist (born in Poland) who won two Nobel prizes; one (with her husband and Henri Becquerel) for research on radioactivity and another for her discovery of radium and polonium (1867-1934)

• madame curie
• marie curie
• marya sklodowska

1. (noun) a unit of radioactivity equal to the amount of a radioactive isotope that decays at the rate of 37,000,000,000 disintegrations per second

• radioactivity unit