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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

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

The kind you might have first met at a 4th of July picnic in a glass Pyrex dish, where guacamole and sour cream mingled with salsa and shredded cheese in slightly slouchy strata.

From Salon • Aug. 5, 2025

I’ve filled my kitchen with Pyrex instead of Tupperware.

From Slate • May 28, 2025

A full rainbow spectrum of vintage Pyrex baking dishes lines a wall at this sunny breakfast and lunch cafe.

From Seattle Times • Jun. 30, 2023

Now she stretched, trying to make room for a large Pyrex casserole.

From "Typical American" by Gish Jen

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