| a chattering or flighty, light-headed person. |
| a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes. |
| Fermi (fěr'mē) Pronunciation Key
Italian-born American physicist who won a 1938 Nobel Prize for his research on neutrons. In 1942, with Leo Szilard, Fermi built the world's first nuclear reactor. He also discovered over 40 new isotopes, including the element fermium, which is named for him. |