noun \ˈbō(ə)r-ˌaks, ˈb(ə)r-, -əks\

Definition of BORAX

: a white crystalline compound that consists of a hydrated sodium borate Na2B4O7·10H2O, that occurs as a mineral or is prepared from other minerals, and that is used especially as a flux, cleansing agent, and water softener and as a preservative

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