a heat-resistant borosilicate glassware used for cooking, lab work, etc.
Origin of Pyrexarbitrary coinage from pie + -r- + -ex (with implication of Classical Greek pyr, fire + Classical Latin rex, king), arbitrary suffix of manufactured products
[occas.p-] such glassware
A trademark for any of various types of heat-resistant and chemical-resistant glass.
- A kind of heat-resistant glass.
- May be a trademark.
First manufactured by the Corning Glasswear Factory in 1915. See quote below.