barium(redirected from Barium compounds)
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1. Symbol Ba A soft, silvery-white or yellowish-white alkaline-earth metal, used to deoxidize copper and to absorb trace gases in vacuum tubes, and used in various alloys. Atomic number 56; atomic weight 137.33; melting point 727°C; boiling point 1,897°C; specific gravity 3.62; valence 2. See Periodic Table.
2. A radiopaque solution containing barium sulfate that is used to visualize the gastrointestinal tract on x-rays.
bar′ic (-ĭk) adj.
(Elements & Compounds) a soft silvery-white metallic element of the alkaline earth group. It is used in bearing alloys and compounds used as pigments. Symbol: Ba; atomic no: 56; atomic wt: 137.327; valency: 2; relative density: 3.5; melting pt: 729°C; boiling pt: 1805°C
[C19: from bar(yta) + -ium]
bar•i•um(ˈbɛər i əm, ˈbær-)
a whitish, malleable, active, divalent, metallic element, occurring in combination chiefly as barite or as witherite. Symbol: Ba; at. wt.: 137.34; at. no.: 56; sp. gr.: 3.5 at 20°C.
Symbol Ba A soft, silvery-white metallic element that only occurs combined with other elements, especially in barite. Barium compounds are used in x-raying the stomach and intestines and in making fireworks and white pigments. Atomic number 56. See Periodic Table.
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|Noun||1.||barium - a soft silvery metallic element of the alkali earth group; found in barite|
metal, metallic element - any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
baryta - any of several compounds of barium
n → Barium nt
barium[ˈbɛərɪəm] n → bario
n. bario, metal alcalino de número atómico 56;
___ enema → enema de ___;
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