barium

bar·i·um  (bâr-m, br-)

n. Symbol Ba

A soft, silvery-white alkaline-earth metal, used to deoxidize copper and in various alloys. Atomic number 56; atomic weight 137.33; melting point 725°C; boiling point 1,140°C; specific gravity 3.50; valence 2. See Table at element.

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[bar(yta) + -ium.]

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baric (-k) adj.

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barium [bare-ee-um]

Noun

Chem a soft silvery-white metallic chemical element Symbol: Ba[Greek barus heavy]

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barium  (bâr-m)

Symbol Ba

A soft, silvery-white metallic element of the alkaline-earth group. It occurs only in combination with other elements, especially in barite. Barium compounds are used in x-raying the digestive system and in making fireworks and white pigments. Atomic number 56; atomic weight 137.33; melting point 725°C; boiling point 1,140°C; specific gravity 3.50; valence 2. See Periodic Table.

Thesaurus

Noun

1.

barium - a soft silvery metallic element of the alkali earth group; found in barite atomic number 56, Ba 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 barite, barytes, heavy spar, barium sulphate - a white or colorless mineral (BaSO4); the main source of barium