Advertisement

Advertisement

samarium

[ suh-mair-ee-uhm ]

noun

, Chemistry.
  1. a rare-earth metallic element discovered in samarskite. : Sm; : 150.35; : 62; : 7.49.


samarium

/ səˈmɛərɪəm /

noun

  1. a silvery metallic element of the lanthanide series occurring chiefly in monazite and bastnaesite and used in carbon-arc lighting, as a doping agent in laser crystals, and as a neutron-absorber. Symbol: Sm; atomic no: 62; atomic wt: 150.36; valency: 2 or 3; relative density: 7.520; melting pt: 1074°C; boiling pt: 1794°C
“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


samarium

/ sə-mârē-əm /

  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.


Discover More

Word History and Origins

Origin of samarium1

From New Latin, dating back to 1875–80; samarskite, -ium
Discover More

Word History and Origins

Origin of samarium1

C19: New Latin, from samarskite + -ium
Discover More

Example Sentences

Certain absorption bands at the blue end of the spectrum are supposed to be due to rare elements such as samarium.

Advertisement

Advertisement

Advertisement

Advertisement


SamaritanSamarkand