'Borax' definitions:

Definition of 'borax'

(from WordNet)
noun
An ore of boron consisting of hydrated sodium borate; used as a flux or cleansing agent

Definition of 'Borax'

From: GCIDE
  • Borax \Bo"rax\, n. [OE. boras, fr. F. borax, earlier spelt borras; cf. LL. borax, Sp. borraj; all fr. Ar. b?rag, fr. Pers. b?rah.] A white or gray crystalline salt, with a slight alkaline taste, used as a flux, in soldering metals, making enamels, fixing colors on porcelain, and as a soap. It occurs native in certain mineral springs, and is made from the boric acid of hot springs in Tuscany. It was originally obtained from a lake in Thibet, and was sent to Europe under the name of tincal. Borax is a pyroborate or tetraborate of sodium, Na2B4O7.10H2O. [1913 Webster]
  • Borax bead. (Chem.) See Bead, n., 3. [1913 Webster]

Words containing 'Borax'