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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

Example Sentences

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Pyrex

Or the yellow Formica kitchen, with its Pyrex hot plate, wall-mounted radio, original Eames barstools and drop-leaf dining table still intact — all charming throwbacks to a simpler time.

From Los Angeles Times ● Nov. 11, 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

Pyrex, on the other hand, sells glass containers.

From Slate ● Sep. 23, 2024

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

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

From "The Thing About Jellyfish" by Ali Benjamin

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