[{"Bold_text": "noun", "List Items": ["a unit of activity of radioactive substances equivalent to 3.70 × 10 disintegrations per second: it is approximately the amount of activity produced by 1 gram of radium-226. : Ci"]}, {"Bold_text": "noun", "List Items": ["I·rène[ee-, ren]. Joliot-Curie, Irène Joliot-Curie, Irène.", "Ma·rie[m, uh, -, ree, m, a, -, ree], 1867–1934, Polish physicist and chemist in France: codiscoverer of radium 1898; Nobel Prize in Physics 1903, for chemistry 1911.", "her husband Pierre[pee-, air, pye, r], 1859–1906, French physicist and chemist: codiscoverer of radium; Nobel Prize in Physics 1903."]}]