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

See Examples For:

Pasteur

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

From Barron's ● Apr. 2, 2026

Smoke was rising over Tehran's Pasteur district, site of the home of Khamenei, and there was a huge security deployment in the capital.

From Barron's ● Feb. 28, 2026

Researchers from the Institut Pasteur and Inserm have found that when mother mice consume dietary emulsifiers, it can negatively affect the gut microbiota of their offspring.

From Science Daily ● Dec. 26, 2025

He was a lowly lab assistant at the Pasteur Institute in Paris when he first collected the data that would lead to the discovery of bacteriophages.

From Salon ● Nov. 20, 2024

Unlike the previous day, Monty was across town participating in a symposium at the Pasteur Institute.

From "City Spies" by James Ponti