- sodium borate, a white, anhydrous, crystalline salt, NaBO, with an alkaline taste, used as a flux in soldering metals and in the manufacture of glass, enamel, artificial gems, soaps, antiseptics, etc.
Origin of boraxfrom the furniture formerly given as premiums by manufacturers of borax soap cheap, poorly made merchandise, esp. furniture
Origin of boraxMiddle English ; from Medieval Latin borax ; from Arabic bauraq ; from Persian b?rah
- A hydrated sodium borate, Na2B4O7·10H2O, an ore of boron, that is used as a cleaning compound.
- Cheap merchandise, especially tasteless furnishings: “today's glinty borax” (New Yorker).
Origin of boraxMiddle English, from Medieval Latin b&omacron;rax, from Arabic b&umacron;raq, from Middle Persian b&umacron;rak. Sense 2, perhaps from the custom of giving away borax soap as a premium for the sale of cheap furniture .
- A white or gray/grey crystalline salt, with a slight alkaline taste, used as a flux, in soldering metals, making enamels, fixing colors/colours on porcelain, and as a soap, etc.
- (chemistry) The sodium salt of boric acid, Na2B4O7, either anhydrous or with 5 or 10 molecules of water of crystallisation; sodium tetraborate.
- Cheap or tawdry, referring to furniture or other works of industrial design.