barium

(Ba) Type: Term Pronunciation: ba′rē-ŭm, bā′rē-ŭm Definitions: 1. A metallic, alkaline, divalent earth element; atomic no. 56, atomic wt. 137.327. Its insoluble salts are often used in radiology as contrast media.
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barium

[n] - a soft silvery metallic element of the alkali earth group
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Barium

Elemental barium does not occur naturally. It is obtained by heating BaO with Al and, once refined, barium is a silvery white, soft metal which oxidises readily in air and water. Barium compounds, particularly BaSO4 , are used for various applications, including the manufacture of paint, as an addition to heavy duty drilling oils and in ...
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Barium

CAS Number: 7440-39-3. A silvery-white metal found in nature. Barium enters the environment during the mining, refining, and production of barium compounds, and from the burning of coal and oil. Barium compounds are used by the oil and gas industries to m
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Barium

(barium enema, barium meal) Barium is a soft, white metal. Barium sulphate is used for X-rays of the digestive system. It is given as a white liquid drink (known as a barium meal) or into the back passage (a barium enema). X-rays cannot go through it, so when the X-ray pictures are taken, the outline of the stomach or bowel shows up on the X-ray...
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Barium

Metal extracted from the North Pennine barytes and witherite ores. This was used in pottery glazes, glass, paints, dyestuffs, poisons and explosives.
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barium

A white substance which shows up on X-rays and can be swallowed to outline the stomach (Barium meal) or introduced via the anus to outline the colon (Barium enema).
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Barium

Barium: 1. A metallic element belonging to the alkaline earths with an atomic number of 56 and an atomic weight of 137.34. The symbol for barium is Ba. 2. In medicine, refers to a chalky solution of barium used to coat the inside of organs so that they will show up on an x-ray. See also: Barium enema; Barium swallow.
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Barium

Ba'ri·um noun [ New Latin , from Greek bary`s heavy.] (Chemistry) One of the elements, belonging to the alkaline earth group; a metal having a silver-white color, and melting at a very high temperature. It is difficult to obtain the pure metal, from the facility with which it b...
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barium

<chemistry> One of the elements, belonging to the alkaline earth group; a metal having a silver-white colour, and melting at a very high temperature. It is difficult to obtain the pure metal, from the facility with which it becomes oxidized in the air. Symbol, Ba. Its oxide called baryta. [Rarely written barytum. ... Some of the compounds of ...
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barium

Ba noun a soft silvery metallic element of the alkali earth group; found in barite
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barium

(Ba) (bar´e-әm) a chemical element, atomic number 56, atomic weight 137.34. Ingestion of excessive amounts can be toxic, occasionally resulting in paralysis or fatal hypokalemia. barium sulfate a water-insoluble salt used as an opaque contrast medium for...
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Barium

• (n.) One of the elements, belonging to the alkaline earth group; a metal having a silver-white color, and melting at a very high temperature. It is difficult to obtain the pure metal, from the facility with which it becomes oxidized in the air. Atomic weight, 137. Symbol, Ba. Its oxide called baryta.
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barium

(Ba), chemical element, one of the alkaline-earth metals of main Group IIa of the periodic table. The element is used in metallurgy, and its ... [3 related articles]
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barium

barium What is done when people are dead.
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barium

(Ba) A soft, silvery-white metallic element that readily tarnishes in air. Barium is one of the alkaline earth metals. It was discovered by Humphry Davy in 1808 and occurs chiefly as barite (barium sulfate, BaSO4) and as witherite (barium carbonate, B...
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barium

barium (bâr'ēum) [Gr.,=heavy], metallic chemical element; symbol Ba; at. no. 56; at. wt. 137.33; m.p. 725°C; b.p. 1,640°C; sp. gr. 3.5 at 20°C; valence +2. Barium is a soft, silver-white, chemically active, poisonous metal with a face-centered cubic crystalline structure. ...
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Barium

Barium is a silver-white, malleable, toxic, bivalent metallic element of the alkaline-earth group that occurs only in combination - it is strongly reactive to air and has to be stored under mineral oil. It has the symbol Ba. Barium dissolves in water, but does not dissolve in sulphuric acid, rather the sulphuric acid causes a protective layer of ba...
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barium

Soft, silver-white, metallic element, atomic number 56, relative atomic mass 137.33. It is one of the alkaline-earth metals, found in nature as barium carbonate and barium sulphate. As the sulphate it is used in medicine: taken as a suspension (a `barium meal`), its movement along the gut is followed using X-rays. The bari...
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BARIUM

Metallic element commonly used as a contrast medium in radiology, particularly useful for examining disorders of the gastrointestinal tract. The barium is first swallowed by the patient and X-ray films are then taken. The general structure and movements of the gastrointestinal tract become visible owing to the inability of the X-ray beam to penetr....
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Barium

Barium is a chemical element with symbol Ba and atomic number 56. It is the fifth element in Group 2, a soft silvery metallic alkaline earth metal. Because of its high chemical reactivity barium is never found in nature as a free element. Its hydroxide was known in pre-modern history as baryta; this substance does not occur as a mineral, but can b...
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Barium

A chalky, chemical, metallic liquid which is used for coating the inner parts of organs so that they become visible on x-ray pictures.
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