a metric unit of length equal to one quadrillionth of a meter
"The new nanotechnology requires measuring components down to the fermi scale, which is essential for understanding atomic structures."
Italian nuclear physicist (in the United States after 1939) who worked on artificial radioactivity caused by neutron bombardment and who headed the group that in 1942 produced the first controlled nuclear reaction (1901-1954)
"As a renowned scientist like Enrico Fermi, his team successfully achieved the first self-sustaining nuclear chain reaction at the University of Chicago."
An obsolete unit of length equal to one femtometer or femtometre (10^(−15) m).
"The old physics textbook listed particle dimensions in fermi, though modern texts now use the standard term femtometer."
A surname, from Italian.