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SM

1.
service mark.

Sm

Symbol, Chemistry
1.

sm.

1.

S-M

Also, s-m, S/M, s/m.

S.M.1

1.
Master of Science.
Origin
< Neo-Latin Scientiae Magister

S.M.2

1.
sergeant major.
2.
State Militia.

S.&M.

Insurance.
1.
stock and machinery.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for SM

sm

abbreviation
1.
San Marino

Sm

Chemical symbol
1.
samarium

SM

abbreviation
1.
sergeant major
2.
sadomasochism
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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SM in Medicine

Sm
The symbol for the element samarium.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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SM in Science
Sm  
The symbol for samarium.
samarium
  (sə-mâr'ē-əm)   
Symbol Sm
A silvery-white metallic element of the lanthanide series that exists in several forms and has seven naturally occurring isotopes. It is used to make glass that absorbs infrared light and to absorb neutrons in the fuel rods of nuclear reactors. Atomic number 62; atomic weight 150.36; melting point 1,072°C; boiling point 1,791°C; specific gravity approximately 7.50; valence 2, 3. See Periodic Table.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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SM in Technology

networking
The country code for San Marino.
(1999-01-27)

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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Related Abbreviations for SM

sm

Samoan

Sm

  1. samarium
  2. Samuel

SM

  1. Latin Scientiae Magister (Master of Science)
  2. sensor module
  3. sergeant major
  4. service mark
  5. single male
  6. Soldier's Medal
  7. stage manager
  8. stationmaster
  9. structural model

sm.

small

S-M

sadomasochism
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Encyclopedia Article for SM

Sm

(Sm), chemical element, rare-earth metal of the lanthanoid series of the periodic table. Samarium is silvery white in colour and is relatively stable in air. It was isolated as an impure oxide and spectroscopically identified as a new element (1879) by P.-E. Lecoq de Boisbaudran. Samarium occurs in many other rare-earth minerals but is almost exclusively obtained from monazite; it is also found in the products of nuclear fission. Ion-exchange techniques are used for its commercial separation and purification. The metal is conveniently prepared by the thermoreduction of its oxide, Sm2O3, with lanthanum metal, followed by distillation of the samarium metal, which is one of the most volatile rare-earth elements. Several allotropes (structural forms) of samarium exist; at room temperature its structure is rhombohedral

Learn more about Sm with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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