Hahn

American  

[hahn] / hɑn /

noun

1. Otto, 1879–1968, German chemist: Nobel Prize 1944.

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Hahn British  

/ haːn /

noun

1. Kurt. 1886–1974, German educationalist. During the Nazi era he escaped to Britain, where he founded Gordonstoun School (1935) and helped to establish the Duke of Edinburgh's award scheme

2. Otto (ˈɔto). 1879–1968, German physicist: discovered the radioactive element protactinium with Meitner (1917); with Strassmann, demonstrated the nuclear fission of uranium, when it is bombarded with neutrons: Nobel prize for chemistry 1944

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Hahn Scientific  

/ hän /

1. German chemist who investigated radioactive elements and helped discover several new ones. His research on the irradiation on uranium and thorium with neutrons led to the 1938 discovery of nuclear fission.

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Example Sentences

In discussing the matter, Hahn also called for the county to look into establishing an emergency stockpile of air purifiers and other critical supplies to better prepare for future disasters.

From Los Angeles Times • Jun. 24, 2026

Bill Hader, Jon Hamm, Kathryn Hahn and Jerry Seinfeld are among those who get in on the action in the seven-part series that was produced by Barack and Michelle Obama.

From The Wall Street Journal • Jun. 21, 2026

Former Mayor James Hahn, the last incumbent mayor to be forced into a runoff, lost his 2005 reelection to then-Councilmember Antonio Villaraigosa.

From Los Angeles Times • May 27, 2026

Photos from her Instagram account show the star holding her baby, as well as her partner Mitch Hahn carrying the baby in a car seat.

From BBC • May 24, 2026

Standing by the blackboard in his office at LeConte Hall, attended by his ever-present students, Oppenheimer declared promptly, “That’s impossible,” and proceeded to demonstrate mathematically why Hahn and Strassmann must have been mistaken.

From "Big Science" by Michael Hiltzik