Definition of "fermi" [fermi]

• A unit of length equal to one femtometer (10-15 meter). (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Non avete scampo, se non forse “fermare il riscaldamento globale prima che lui fermi noi”…"
• "Example: for some problems nuclear physicists and chemists use the fermi liquid drop model of the nucleus…for others, the nuclear shell model."
• "I militari stanno eseguendo 99 fermi ordinati dai pm della Direzione distrettuale antimafia."