What is another word for femtometer?
Pronunciation: [fɛmtˈɒmɪtə] (IPA) 
A femtometer is a unit of length measuring one quadrillionth of a meter. While it is a small unit of measurement, it is important in the field of particle physics. However, there are a few synonyms for femtometer that one can use in order to express the same amount of distance. These include fermi, which is commonly used in honor of Nobel Prize winning physicist Enrico Fermi. Another synonym includes a femto or a femmicron, both of which represent the same amount of distance. Additionally, some may use the prefix attometer as a synonym, which represents one quintillionth of a meter.
