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Sm

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Symbol, Chemistry.
  1. samarium.

SM

  1. service mark.

S and M

or S&M, s&m

  1. sadomasochism; sadism and masochism.

Origin of S and M

First recorded in 1965–70

S.&M.

Insurance.
  1. stock and machinery.

sm.

  1. small.

S-M

or s-m, S/M, s/m

  1. Also S and M. sadomasochism.
  2. sadomasochistic.

S.M.1

  1. Master of Science.

Origin of S.M.1

From the New Latin word Scientiae Magister

S.M.2

  1. sergeant major.
  2. State Militia.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for sm

sm

the internet domain name for
  1. San Marino

Sm

the chemical symbol for
  1. samarium

SM

abbreviation for
  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

sm in Medicine

Sm

  1. The symbol for the elementsamarium

sm in Science

Sm

  1. The symbol for samarium.

samarium

[sə-mârē-əm]
Sm
  1. 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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.