barium sulfate

barium sulfate
noun Date: 1866 a crystalline insoluble compound BaSO4 that is used especially as a pigment and extender, as a filler (as in fluids used in gas and oil drilling), and as a substance opaque to X rays in medical photography of the alimentary canal

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • barium sulfate — n a colorless crystalline insoluble salt BaSO4 occurring in nature as barite and used medically chiefly as a radiopaque substance * * * [USP] BaSO4, an odorless fine white powder used as a contrast medium in radiography of the digestive tract.… …   Medical dictionary

  • barium sulfate — n. an odorless, tasteless, white powder, BaSO4, insoluble in water: it is used as a paint pigment, as a filler for paper, textiles, etc., and as an opaque substance that is ingested to aid in making diagnostic X rays of the stomach and intestine …   English World dictionary

  • Barium sulfate — chembox new ImageFile = Barium sulfate 2D.png ImageSize = 225px ImageName = Chemical structure of barium sulfate ImageFile1 = Barite unit cell 3D vdW.png ImageSize1 = 225px ImageName1 = 3D model of barium sulfate IUPACName = OtherNames = Section1 …   Wikipedia

  • barium sulfate — bario sulfatas statusas T sritis chemija formulė BaSO₄ atitikmenys: angl. barium sulfate rus. барий сернокислый; бария сульфат ryšiai: sinonimas – bario tetraoksosulfatas …   Chemijos terminų aiškinamasis žodynas

  • barium sulfate — noun a white insoluble radiopaque powder used as a pigment • Syn: ↑barium sulphate, ↑blanc fixe • Hypernyms: ↑sulfate, ↑sulphate …   Useful english dictionary

  • barium sulfate — Chem. a white, crystalline, water insoluble powder, BaSO4, used chiefly in the synthesis of pigments, as in paints and printing inks, and, because of its radiopacity, for x ray diagnosis in medicine. [1870 75] * * * …   Universalium

  • barium sulfate — bar′ium sul′fate n. chem. a white, crystalline, water insoluble powder, BaSO4, used chiefly in the synthesis of pigments and as a contrast medium in x ray diagnosis • Etymology: 1870–75 …   From formal English to slang

  • Barium sulfate suspension — is barium sulfate (powder) turned into a liquid form by suspending it in a quick flowing drink to aid in CT scans of the gastrointestinal region.UseBarium sulfate suspensions are provided by a radiologist in advance of a CT scan to allow for… …   Wikipedia

  • Barium — (pronEng|ˈbɛəriəm) is a chemical element. It has the symbol Ba, and atomic number 56. Barium is a soft silvery metallic alkaline earth metal. It is never found in nature in its pure form due to its reactivity with air. Its oxide is historically… …   Wikipedia

  • Barium nitrate — Barium nitrate …   Wikipedia

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