Samarium



noun, Chemistry.
1.
a rare-earth metallic element discovered in samarskite. Symbol: Sm; atomic weight: 150.35; atomic number: 62; specific gravity: 7.49.
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

samarium sa·mar·i·um (sə-mâr’ē-əm, -mār’-)
n.
Symbol Sm
A metallic rare-earth element used in ferromagnetic alloys, 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 1,790°C; specific gravity 7.52; valence 2, 3.
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.

Tagged:

Read Also:

  • Samarkand

    noun 1. a city in SE Uzbekistan: taken by Alexander the Great 329 b.c.; Tamerlane’s capital in the 14th century. noun 1. a province of the ancient Persian Empire between the Oxus and Jaxartes rivers: now in Uzbekistan. Capital: Samarkand. noun 1. a city in E Uzbekistan: under Tamerlane it became the chief economic and […]

  • Samarra

    noun 1. a town in central Iraq, on the Tigris: seat of the early Abassid caliphs.



  • Samarskite

    noun 1. a velvet-black mineral, a complex columbate-tantalate of uranium, cerium, etc., occurring in masses: a minor source of uranium, thorium, and rare-earth oxides. noun 1. a velvety black mineral of complex composition occurring in pegmatites: used as a source of uranium and certain rare earth elements

  • Sama-Veda

    noun, Hinduism. 1. one of the Samhitas, a collection of mantras and tunes used in connection with the Rig-Veda. noun 1. (Hinduism) the third Veda containing the rituals for sacrifices



Disclaimer: Samarium definition / meaning should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. All content on this website is for informational purposes only.