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.

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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

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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.

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Example Sentences

Dill asked Koch to remove a urine hose and let the system run for one minute.

From The Wall Street Journal • Apr. 2, 2026

Orion’s passengers— astronauts External link Reid Wiseman, Victor Glover, Christina Koch, and Jeremy Hansen—reached orbit only minutes after t-minus zero.

From Barron's • Apr. 2, 2026

"The moon is a witness plate to our entire solar system's formation," said astronaut Koch in a press conference over the weekend.

From Barron's • Apr. 1, 2026

Behind them will be Christina Koch and Jeremy Hansen, a Canadian fighter pilot turned astronaut.

From BBC • Mar. 31, 2026

Koch was willing to work for the modest salary the Mercury could afford.

From "Spooked!" by Gail Jarrow