barium

[ bair-ee-uhm, bar- ]

/ ˈbɛər i əm, ˈbær- /

noun Chemistry.

a whitish, malleable, active, divalent, metallic element, occurring in combination chiefly as barite or as witherite. Symbol: Ba; atomic weight: 137.34; atomic number: 56; specific gravity: 3.5 at 20°C.

Origin of barium

First recorded in 1800–10; bar(ytes) + -ium

Words nearby barium

barista, barit., barite, baritone, baritone clef, barium, barium 140, barium bromate, barium carbonate, barium chloride, barium chromate

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for barium

Iota is informed that the Chloride of Barium, used in about the same proportion as common salt, will give the tint he desires.
Notes and Queries, Number 169, January 22, 1853|Various
A third rabbit, fed like the preceding with 0.5 gram of barium acetate, showed much the same result.
Barium, A Cause of the Loco-Weed Disease|Albert Cornelius Crawford
Its salts would be precipitable by barium carbonate; the gallium salts are thrown down by this reagent.
Cooley's Cyclopdia of Practical Receipts and Collateral Information in the Arts, Manufactures, Professions, and Trades..., Sixth Edition, Volume I|Arnold Cooley
Accidentally the writer found that Sprengel had reported the presence of barium in Astragalus exscapus, a closely allied plant.
Barium, A Cause of the Loco-Weed Disease|Albert Cornelius Crawford

A strong solution of sulphide of barium, made into a paste with powdered starch, and applied immediately.
Cooley's Cyclopdia of Practical Receipts and Collateral Information in the Arts, Manufactures, Professions, and Trades..., Sixth Edition, Volume I|Arnold Cooley

British Dictionary definitions for barium

barium

/ (ˈbɛərɪəm) /

noun

a soft silvery-white metallic element of the alkaline earth group. It is used in bearing alloys and compounds are 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

Word Origin for barium

C19: from bar (yta) + -ium

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for barium

barium

[ bâr′ē-əm, băr′- ]

n. Symbol Ba

A soft alkaline-earth metal that is a component in compounds used in radiography and as radiopaque media. Atomic number 56.

Scientific definitions for barium

barium

[ bâr′ē-əm ]

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.

单词	barium
释义	barium [ bair-ee-uhm, bar- ] / ˈbɛər i əm, ˈbær- / noun Chemistry. a whitish, malleable, active, divalent, metallic element, occurring in combination chiefly as barite or as witherite. Symbol: Ba; atomic weight: 137.34; atomic number: 56; specific gravity: 3.5 at 20°C. Origin of barium First recorded in 1800–10; bar(ytes) + -ium Words nearby barium barista, barit., barite, baritone, baritone clef, barium, barium 140, barium bromate, barium carbonate, barium chloride, barium chromate Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for barium Iota is informed that the Chloride of Barium, used in about the same proportion as common salt, will give the tint he desires. Notes and Queries, Number 169, January 22, 1853\|Various A third rabbit, fed like the preceding with 0.5 gram of barium acetate, showed much the same result. Barium, A Cause of the Loco-Weed Disease\|Albert Cornelius Crawford Its salts would be precipitable by barium carbonate; the gallium salts are thrown down by this reagent. Cooley's Cyclopdia of Practical Receipts and Collateral Information in the Arts, Manufactures, Professions, and Trades..., Sixth Edition, Volume I\|Arnold Cooley Accidentally the writer found that Sprengel had reported the presence of barium in Astragalus exscapus, a closely allied plant. Barium, A Cause of the Loco-Weed Disease\|Albert Cornelius Crawford A strong solution of sulphide of barium, made into a paste with powdered starch, and applied immediately. Cooley's Cyclopdia of Practical Receipts and Collateral Information in the Arts, Manufactures, Professions, and Trades..., Sixth Edition, Volume I\|Arnold Cooley British Dictionary definitions for barium barium / (ˈbɛərɪəm) / noun a soft silvery-white metallic element of the alkaline earth group. It is used in bearing alloys and compounds are 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 Word Origin for barium C19: from bar (yta) + -ium Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Medical definitions for barium barium [ bâr′ē-əm, băr′- ] n. Symbol Ba A soft alkaline-earth metal that is a component in compounds used in radiography and as radiopaque media. Atomic number 56. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for barium barium [ bâr′ē-əm ] 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. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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