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Pyrex

American  
[pahy-reks] / ˈpaɪ rɛks /
Trademark.
  1. a brand name for any of a class of heat- and chemical-resistant glassware products of varying composition used for cooking.


Pyrex British  
/ ˈpaɪrɛks /

noun

    1. any of a variety of borosilicate glasses that have low coefficients of expansion, making them suitable for heat-resistant glassware used in cookery and chemical apparatus

    2. ( as modifier )

      a Pyrex dish

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012