from The American Heritage® Dictionary of the English Language, 4th Edition

  • A trademark used for any of various types of heat-resistant and chemical-resistant glass.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A borosilicate glass with a low coefficient of thermal expansion; used for heat-resistant glassware in cooking and chemistry

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a borosilicate glass with a low coefficient of expansion; used for heat-resistant glassware in cooking and chemistry


First manufactured by the Corning Glasswear Factory in 1915. See quote below. (Wiktionary)


  • Your glass dish failed with the high temperature, something that (presumably) Pyrex is known to do.

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  • The name Pyrex has been around for generations, in fact since 1915.

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  • Used in microfluidic systems, these "Pyrex" - like nanoparticles are more stable when subjected to temperature fluctuations and harsh chemical environments than currently used nanoparticles made of polymers or silica glass. - latest science and technology news stories

  • Glass such as Pyrex (used for test-tubes and ovenware) is usually based on boro-silicates or alumino-silicates, which withstand heating better and typically have a higher glass transition temperature.

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  • So this year, World Kitchen, a little-known Rosemont-based company that makes big-name brands such as Pyrex and CorningWare, will release a new "footed" Corelle rice bowl in China, along with about 84 other updated products worldwide. -

  • Using borosilicate glass (the original "Pyrex") instead of silica glass or polymers would overcome these limitations, but fabrication has been impossible to date due to the instability of the boron oxide precursor materials. - latest science and technology news stories

  • (without any plastic or rubber parts), heat-proof glass ( "Pyrex" type) or vaseline in the poupinel.

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  • Store leftovers in glass containers, such as Pyrex, instead of flimsy plastic ones ($39.99 plus shipping for a 10-piece set at World Kitchen, shopworldkitchen. com

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  • Things were to be cooked in a pot, not a Pyrex oven dish!

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  • “Exploding” Pyrex dishes raise concerns and questions ..

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