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

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

Scientists from the Institut Pasteur have conducted a genetic analysis of the remains of soldiers who retreated from Russia in 1812.

From Science Daily • Oct. 26, 2025

The idea of mirror life was first floated in 1860 by Louis Pasteur, of vaccination, fermentation and pasteurization fame.

From Salon • Jan. 18, 2025

Last year, the Pasteur Institute won €2 million from the European Research Council to launch its IndexThePlanet project to catalog all data in the SRA.

From Science Magazine • Jun. 5, 2024

“I suppose you’re right. Even Louis Pasteur, the father of modern medicine, said that ‘chance favors the prepared mind.’”

From "Moon Over Manifest" by Clare Vanderpool