pyrex
- n a borosilicate glass with a low coefficient of expansion; used for heat-resistant glassware in cooking and chemistry
- Divide the oatmeal between two small, pyrex bowls.
- In its great belly was a 34-ton lake of molten pyrex borosilicate glass, white hot at 1.
- Since then Ewing has built a camera encased in thick pyrex glass, shaped like a giant test tube.