Also found in: Thesaurus, Medical, Financial, Acronyms, Encyclopedia.
n. pl. fer·mis
A unit of length equal to one femtometer (10-15 meter).
[After Enrico Fermi.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Fermi(ˈfɜːmɪ; Italian ˈfɛrmi)
(Biography) Enrico (enˈriːko). 1901-54, Italian nuclear physicist, in the US from 1939. He was awarded a Nobel prize for physics in 1938 for his work on radioactive substances and nuclear bombardment and headed the group that produced the first controlled nuclear reaction (1942)
(Nuclear Physics) a unit of length used in nuclear physics equal to 10–15 metre
[C20: named after Enrico Fermi]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
fer•mi(ˈfɜr mi, ˈfɛər-)
a unit of length, 10−15 m, used in measuring nuclear distances. Symbol: F
[after E. Fermi]
Fer•mi(ˈfɜr mi, ˈfɛər-)
Enrico, 1901–54, Italian physicist, in the U.S. after 1939.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
Switch to new thesaurus
|Noun||1.||fermi - a metric unit of length equal to one quadrillionth of a meter|
metric linear unit - a linear unit of distance in metric terms
|2.||Fermi - 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)|
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.