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Koch

American  
[koch, kawkh] / kɒtʃ, kɔx /

noun

  1. Edward I., 1924–2013, U.S. politician: mayor of New York City 1977–89.

  2. Robert 1843–1910, German bacteriologist and physician: Nobel Prize 1905.


Koch British  
/ kɔx /

noun

  1. Robert (ˈroːbɛrt). 1843–1910, German bacteriologist, who isolated the anthrax bacillus (1876), the tubercle bacillus (1882), and the cholera bacillus (1883): Nobel prize for physiology or medicine 1905

"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

Koch Scientific  
/ kôk /
  1. German bacteriologist who demonstrated that specific diseases are caused by specific microorganisms. He identified the bacilli that cause anthrax, tuberculosis, and cholera, and he showed that fleas and rats are responsible for transmission of the bubonic plague and that the tsetse fly is responsible for transmitting sleeping sickness. Koch won the Nobel Prize for physiology or medicine in 1905.


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

At a fundraising event in July at the Hamptons estate of philanthropist Julia Koch, Garber said Harvard needed their support given the shifting relationship between higher education and Washington.

From The Wall Street Journal Sep. 11, 2026

Working with Nicole Henning, an ultrasound research specialist at the Koch Institute, the team developed a technique for delivering the mixture with an ultrasound-guided syringe.

From Science Daily Sep. 7, 2026

Meir previously made history in 2019 when she and Nasa astronaut Christina Koch completed the first ever all-female spacewalk.

From BBC Sep. 1, 2026

Atlas also has long-standing links with ExxonMobil and the Charles Koch Foundation.

From Salon Sep. 1, 2026

“Well, protect yourself. That soldier told me that he’s wired Koch about you.”

From "Salt to the Sea" by Ruta Sepetys

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