Standard Lemma guide

Pyrex

name · noun · 7 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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1

name

Meaning 1

A brand of glassware produced by the Corning corporation, capable of resisting high temperatures, and suitable for cooking applications, currently made with tempered glass.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

name

Meaning 2

A brand of glassware produced by Corning using borosilicate glass.

Definition source: English Wiktionary via Wiktextract

Usage: historical

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

Alternative form of pyrex.

Definition source: English Wiktionary via Wiktextract

Usage: alt-of, alternative, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

A kind of heat-resistant borosilicate glass, made by mixing a high concentration of boron oxides into the molten glass to reduce its thermal expansion coefficient.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: borosilicate glass, glass

5

noun

Meaning 5

Any borosilicate glass.

Definition source: English Wiktionary via Wiktextract

Usage: broadly, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

noun

Meaning 6

Any glass capable of withstanding high temperatures, such as tempered glass suitable for cooking.

Definition source: English Wiktionary via Wiktextract

Usage: broadly, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

7

noun

Meaning 7

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

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: glass

History

Etymology

From pie + r + -ex. First manufactured by the Corning Glassware Factory in 1915. * 1957, Letter from the Corning Glassware Factory: *: "We had a number of prior trademarks ending in the letters ex. One of the first commercial products to be sold under the new mark was a pie plate, and in the interests of euphonism the letter "r" was inserted between pie and ex, and the whole thing condensed to pyrex." * The name also connotes the fire of pyro-.

Genericized trademark from Pyrex.

Across languages

Translations

21 source translations are retained for this English entry.

  • Arabic: بيركس — heat-resistant borosilicate glass
  • Bulgarian: пирекс (pireks) — heat-resistant borosilicate glass
  • Czech: pyrex — heat-resistant borosilicate glass
  • Danish: pyrex — heat-resistant borosilicate glass
  • Dutch: pyrex — heat-resistant borosilicate glass
  • Finnish: pyrex — heat-resistant borosilicate glass
  • French: pyrex — heat-resistant borosilicate glass
  • German: pyrex — heat-resistant borosilicate glass
  • Hungarian: pyrex — heat-resistant borosilicate glass
  • Italian: pyrex — heat-resistant borosilicate glass
  • Norwegian: pyrex — heat-resistant borosilicate glass
  • Polish: pyrex — heat-resistant borosilicate glass
  • Portuguese: pirex — heat-resistant borosilicate glass
  • Romanian: pirex — heat-resistant borosilicate glass
  • Russian: пирекс (pireks) — heat-resistant borosilicate glass
  • Slovak: pyrex — heat-resistant borosilicate glass
  • Spanish: pyrex — heat-resistant borosilicate glass
  • Spanish: pírex — heat-resistant borosilicate glass
  • Spanish: vidrio pírex — heat-resistant borosilicate glass
  • Swedish: pyrex — heat-resistant borosilicate glass
  • Turkish: payreks — heat-resistant borosilicate glass