[ 'bɔ:raks ]
■ noun a white mineral consisting of hydrated sodium borate, found in some alkaline salt deposits and used in making glass and as a metallurgical flux.
Origin
ME: from med. L., from Arab. būraḳ , from Pahlavi būrak .
[ 'bɔ:raks ]
■ noun a white mineral consisting of hydrated sodium borate, found in some alkaline salt deposits and used in making glass and as a metallurgical flux.
Origin
ME: from med. L., from Arab. būraḳ , from Pahlavi būrak .
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004