barium

13 ENTRIES FOUND:

bar·i·um

noun \ˈber-ē-əm\

: a chemical element that is a soft silver-white metal

Full Definition of BARIUM

1
:  a silver-white malleable toxic divalent metallic element of the alkaline-earth group that occurs only in combination — see element table

Origin of BARIUM

New Latin, from bar-
First Known Use: 1808

bar·i·um

noun \ˈbar-ē-əm, ˈber-\   (Medical Dictionary)

Medical Definition of BARIUM

1
: a silver-white malleable toxic bivalent metallic element of the alkaline-earth group that occurs only in combination—symbol Ba; see element table

barium

noun    (Concise Encyclopedia)

Chemical element, one of the alkaline earth metals, chemical symbol Ba, atomic number 56. It is very reactive and in compounds always has valence 2. In nature it is found chiefly as the minerals barite (barium sulfate) and witherite (barium carbonate). The element is used in metallurgy, and its compounds are used in fireworks, petroleum mining, and radiology and as pigments and reagents. All soluble barium compounds are toxic. Barium sulfate, one of the most insoluble salts known, is given in a “barium meal” as a contrast medium for X-ray examination of the gastrointestinal tract.

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