Pasteur

American  

[pa-stur, pah-stœr] / pæˈstɜr, pɑˈstœr /

noun

1. Louis 1822–95, French chemist and bacteriologist.

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Pasteur British  

/ pastœr /

noun

1. Louis (lwi). 1822–95, French chemist and bacteriologist. His discovery that the fermentation of milk and alcohol was caused by microorganisms resulted in the process of pasteurization. He also devised methods of immunization against anthrax and rabies and pioneered stereochemistry

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Pasteur Scientific  

/ păs-tûr′ /

1. French chemist who founded modern microbiology. His early work with fermentation led him to invent the process of pasteurization. Pasteur established that microorganisms cause communicable diseases and infections.

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Other Word Forms

• Pasteurian
  adjective

Example Sentences

The WHO said they were in a stable condition and tests were being sent to the Institut Pasteur in Dakar.

From Barron's • May 5, 2026

Molecular studies conducted at the Institut Pasteur, led by Pascal Pineau, show that pesticides can interfere with processes that maintain normal cell function and identity.

From Science Daily • Apr. 27, 2026

And Iran reported major damage to a century-old medical research center, the Pasteur Institute.

From Barron's • Apr. 2, 2026

"These Asgard archaea are often missed by low-coverage sequencing," said co-author Kathryn Appler, a postdoctoral researcher at the Institut Pasteur in Paris, France.

From Science Daily • Feb. 20, 2026

The 1880s saw two scientists, France’s Louis Pasteur and Germany’s Robert Koch, isolate various bacteria—extremely small one-celled creatures—living in animals and humans and link them to specific diseases.

From "An American Plague: The True and Terrifying Story of the Yellow Fever Epidemic of 1793" by Jim Murphy