from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A soft, silvery, easily oxidized metallic element that ignites spontaneously in air when finely divided. Strontium is used in pyrotechnic compounds and various alloys. Atomic number 38; atomic weight 87.62; melting point 769°C; boiling point 1,384°C; specific gravity 2.54; valence 2. See Table at element.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A metallic chemical element (symbol Sr) with an atomic number of 38.

from the GNU version of the Collaborative International Dictionary of English

  • n. A metallic element of the calcium group, always naturally occurring combined, as in the minerals strontianite, celestite, etc. It is isolated as a yellowish metal, somewhat malleable but harder than calcium. It is chiefly employed (as in the nitrate) to color pyrotechnic flames red. Symbol Sr. Atomic weight 87.3.

from The Century Dictionary and Cyclopedia

  • n. Chemical symbol, Sr; atomic weight, 87.37; specific gravity, 2.54. A dark-yellow metal, less lustrous than barium, malleable, and fusible at a red heat.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a soft silver-white or yellowish metallic element of the alkali metal group; turns yellow in air; occurs in celestite and strontianite


from The American Heritage® Dictionary of the English Language, 4th Edition

From New Latin strontia, strontium oxide, from English strontian; see strontianite.

from Wiktionary, Creative Commons Attribution/Share-Alike License

Named in a pseudo-Latin manner for the name of the Scottish town Strontian.


  • But the water may contain other harmful substances, such as beta-ray emitting strontium, which is known for causing bone cancers.

    New Leak Detected at Nuclear Facility

  • "The strontium is the secret," said Li - although exactly what it is doing is unclear.


  • One of the procedures is called strontium isotope analysis, a technique that measures the ratio of strontium isotopes in a person's tooth enamel to determine where they grew up.

    RedOrbit News - Technology

  • Answer: A drug called strontium ranelate is commonly prescribed in several European countries.

    Starbulletin Headlines

  • Recent health department tests on National Gypsum board found it lacked a compound called strontium sulfide - something found in all of the Chinese drywall samples.

    NBC2 News

  • When a POS is attacked, when it hits the end of its shields, it goes into 'reinforced mode', and becomes invunerable for a period of time depending on how much 'strontium' it is fueled up with.

    Sleep is cancelled

  • Other hazards such as strontium are insignificant.

    The Register

  • Only five were eliminated in the first semifinal round, when words like "strontium" and "parabulia" didn't stump anyone.


  • A: The non-patentable forms of strontium supplements, such as strontium citrate, should dissolve and deliver strontium to the bones just as efficiently as strontium ranelate.

    Starbulletin Headlines

  • Only five of the 41 were eliminated in the first semifinal round, and words like "strontium" and



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  • "Jack was speaking to the gunner at the time, explaining that the private powder in the kegs marked X was mixed with red orpiment, and XX with antimony or copper, while still others had lycoperdium or camphor or strontium..."

    --Patrick O'Brian, The Ionian Mission, 50

    February 11, 2008

  • Sr

    December 2, 2007