Definition of borax in English:

borax

Syllabification: bo·rax
Pronunciation: /ˈbôraks
 
/

noun

  • A white mineral in some alkaline salt deposits, used in making glass and ceramics, as a metallurgical flux, and as an antiseptic.
    • A hydrated sodium borate; chemical formula: Na2B4O7(OH)4.8H2O
    More example sentences
    • The flux also might contain silica, borax, soda ash, potassium nitrate and household flour.
    • Fluxes of this type are usually based on borax, boric acid, or glass, which melts at copper alloy melting temperatures to provide a fluid slag cover.
    • Potassium salts, such as sylvite (potassium chloride), are used to produce fertilizers for the agricultural industry, while boron salts, especially borax, are a basic resource for the glass industry.

Origin

late Middle English: from medieval Latin, from Arabic būraḳ, from Pahlavi būrak.

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