| samarium. |
| 1. | Master of Science. Origin: < NL Scientiae Magister  |
| 2. | sergeant major. |
| 3. | State Militia. |
| stock and machinery. |
| 1. | a master's degree given usually in a specific branch of the natural sciences, mathematics, or technology. |
| 2. | a person who has been awarded this degree. Abbreviation: M.S., M.Sc., S.M., Sc.M. |
[sey-doh-mas-uh-kiz-uhm, -maz-, sad-oh-] 
| 1. | interaction, esp. sexual activity, in which one person enjoys inflicting physical or mental suffering on another person, who derives pleasure from experiencing pain. |
| 2. | gratification, esp. sexual, gained through inflicting or receiving pain; sadism and masochism combined. Abbreviation: S-M, S and M |
| sadomasochism; sadism and masochism. |
| a proprietary term, such as Blue Cross and Blue Shield, American Express, or Planned Parenthood, that is registered with the Patent and Trademark Office. Abbreviation: SM |
| sa·mar·i·um (sə-mâr'ē-əm, -mār'-) n. Symbol Sm A silvery or pale gray metallic rare-earth element found in monazite and bastnaesite and used as a dopant for laser materials, in infrared absorbing glass, and as a neutron absorber in certain 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 Table at element. [samar(skite) + -ium.] |
| Sam·u·el 2 (sām'yōō-əl) n. Abbr. Sam. or Sm or S See Table at Bible. [After Samuel.] |
| service mark n. Abbr. SM A mark used in the sale or advertising of services to identify the services and distinguish them from the services of others. |
| Sm 1 The symbol for the element samarium. |
| Sm 2 abbr. Bible Samuel |
| SM abbr.
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| sta·tion·mas·ter (stā'shən-mās'tər) n. Abbr. SM An official in charge of a railroad or bus station. |
sadomasochism sa·do·mas·o·chism (sā'dō-mās'ə-kĭz'əm, sād'ō-)
n.
The perversion of deriving pleasure, especially sexual pleasure, from simultaneous sadism and masochism.
Sm
The symbol for the element samarium.
| samarium (sə-mâr'ē-əm) Pronunciation Key
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. |
| Sm
The symbol for samarium. |
sm networking
The country code for San Marino.
(1999-01-27)
| sm Samoan |
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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
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