stron·ti·um
(strŏn′chē-əm, -tē-əm, -shəm)n. Symbol Sr A soft, silvery, easily oxidized metallic element that ignites spontaneously in air when finely divided. Strontium is used in pyrotechnic compounds and various alloys, and as a coating on cathode-ray tubes and related display devices to block x-ray emission. Atomic number 38; atomic weight 87.62; melting point 777°C; boiling point 1,382°C; specific gravity 2.64; valence 2. See
Periodic Table.
[From New Latin strontia, strontium oxide, from English strontian; see strontianite.]
stron′tic (-tĭk) adj.
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strontic
(ˈstrɒntɪk) adj (Metallurgy) of or relating to strontium
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