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Pyrex

American

[pahy-reks] / ˈpaɪ rɛks /

Trademark.

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

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Pyrex

In “Last Rites,” the house of the beset Smurl family comes instantly to life with its worn furniture, Pyrex casserole pans and stretched cord of its wall phone.

From Los Angeles Times ● Sep. 16, 2025

Tupperware is the most famous name in the game, but it has big competitors like Rubbermaid, OXO, and Pyrex.

From Slate ● Sep. 23, 2024

As well as the more than a century-old cookware brand Pyrex and Instant Pot, which was launched in 2010, Instant Brands' portfolio also includes kitchenware brands Corelle, CorningWare and Snapware.

From BBC ● Jun. 13, 2023

The maker of Pyrex glassware and Instant Pot has filed for Chapter 11 bankruptcy protection as the company that was already struggling is stung by inflation, with Americans pulling back on spending.

From Seattle Times ● Jun. 13, 2023

In the middle of the tools, a dead worm just sat in a Pyrex cup.

From "The Thing About Jellyfish" by Ali Benjamin

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023