any of a range of heat- and chemical-resistant glasses, such as Pyrex, prepared by fusing together boron(III) oxide, silicon dioxide, and, usually, a metal oxide
borosilicate glass in American English
noun
a glass containing 5 percent or more of B2O3, highly resistant to heat and shock, used esp. in making cookware and chemical glassware
Word origin
[1930–35]This word is first recorded in the period 1930–35. Other words that entered Englishat around the same time include: DNA, logical positivism, old school tie, preset, technical foul
Examples of 'borosilicate glass' in a sentence
borosilicate glass
Chemex's elegant 10-cup pourover coffee maker is made of borosilicate glass, with a jaunty polished wood collar secured with a leather tie.