FM
FM
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| time taken for current to reach maximum value |
| square root of arithmetic mean of squares of the numbers in given set of numbers |
Fm
fm
Based on the Random House Dictionary, © Random House, Inc. 2012.
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| fm | |
| —abbreviation for | |
| 1. | fathom |
| 2. | from |
| —the internet domain name for | |
| 3. | Micronesia |
| Fm | |
| —the chemical symbol for | |
| fermium | |
| FM | |
| —abbreviation for | |
| 1. | frequency modulation |
| 2. | Field Marshal |
| 3. | aeronautics figure of merit |
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Fm
The symbol for the element fermium.
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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fermium  (fûr'mē-əm) Pronunciation Key
Symbol Fm A synthetic, radioactive metallic element of the actinide series that is produced from plutonium or uranium. Its most stable isotope is Fm 257 with a half-life of approximately 100 days. Atomic number 100. See Periodic Table. |
| Fm
The symbol for fermium. |
| FM
Abbreviation of frequency modulation |
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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FM definition
1.
2.
3.
(2001-04-30)
fm definition
networkingThe country code for the Federated States of Micronesia.
Heavily used for vanity domains by FM radio stations.
(1999-01-27)
| Fm fermium |
FM
|
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Fm
(Fm), synthetic chemical element of the actinoid series of the periodic table, atomic number 100. Fermium (as the isotope fermium-255) is produced by the intense neutron irradiation of uranium-238 and was first positively identified by Albert Ghiorso and coworkers at Berkeley, Calif., in debris taken from the first thermonuclear or hydrogen-bomb test explosion (November 1952), in the South Pacific. All fermium isotopes are radioactive. Mixtures of the isotopes fermium-254 (3.24-hour half-life), fermium-255 (20.1-hour half-life), fermium-256 (2.7-hour half-life), and fermium-257 (80-day half-life) can be produced by the intensive slow-neutron irradiation of elements of lower atomic number, such as plutonium.
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