Definitions from Wiktionary ( )

▸ noun:  A brand of glassware produced by the Corning corporation, capable of resisting high temperatures, and suitable for cooking applications, currently made with tempered glass.
▸ noun:  (historical) A brand of glassware produced by Corning using borosilicate glass.
▸ noun:  A kind of heat-resistant borosilicate glass, made by mixing a high concentration of boron oxides into the molten glass to reduce its thermal expansion coefficient.
▸ noun:  (by extension) Any borosilicate glass.
▸ noun:  (by extension) Any glass capable of withstanding high temperatures, such as tempered glass suitable for cooking.
▸ noun:  Alternative form of pyrex [A kind of heat-resistant borosilicate glass, made by mixing a high concentration of boron oxides into the molten glass to reduce its thermal expansion coefficient.]

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