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sodium borate

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bo⋅rax

1[bawr-aks, -uhks, bohr-]
–noun, plural bo⋅rax⋅es, bo⋅ra⋅ces [bawr-uh-seez, bohr-] .
a white, water-soluble powder or crystals, hydrated sodium borate, Na2B4O7·10H2O, occurring naturally or obtained from naturally occurring borates; tincal: used as a flux, cleansing agent, in the manufacture of glass, porcelain, and enamel, and in tanning.


Origin:
1350–1400; < ML ≪ dial. Ar būraq < MPers būrag; r. ME boras < MF < ML borax
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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sodium borate  
n.  A crystalline compound, Na2B4O7·10H2O, used in the manufacture of glass, detergents, and pharmaceuticals.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

borax 
c.1386, from Anglo-Fr. boras, from M.L. baurach, from Arabic buraq, Pers. burah.
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

Main Entry: bo·rax
Pronunciation: 'bO(&)r-"aks, 'bo(&)r-, -&ks
Function: noun
: a white crystalline compound that consists of a hydratedsodium borate Na2B4O7·10H2O, that occurs as a mineral or is prepared from other minerals, and that is used especially as a flux, cleansing agent, andwater softener and as a preservative

Main Entry: sodium borate
Function: noun
: a sodium salt of a boric acid; especially : BORAX
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

borax bo·rax1 (bôr'āks', -əks)
n.
Sodium borate.

sodium borate n.
A crystalline compound that is the sodium salt of boric acid and is used as an alkalizing agent and as a mild astringent in lotions, gargles, and mouthwashes.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Science Dictionary
borax   (bôr'āks')  Pronunciation Key 
A white, crystalline powder and mineral used as an antiseptic, as a cleansing agent, and in fusing metals and making heat-resistant glass. The mineral is an ore of boron and also occurs in yellowish, blue, or green varieties. Chemical formula: Na2B4O7·10H2O.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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