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

McOsker was a top aide to James Hahn when Hahn was city attorney and then after he was elected mayor.

From Los Angeles Times • May 1, 2026

County Supervisor Janice Hahn began the ceremony with congratulatory remarks, stating, “The voters of Whittier spoke.”

From Los Angeles Times • May 1, 2026

Translation, Mr. Hahn suggests, is the sum of countless choices.

From The Wall Street Journal • Apr. 22, 2026

“In good translation,” Mr. Hahn claims, “Shakespeare does not merely survive, he thrives.”

From The Wall Street Journal • Apr. 22, 2026

In late December 1938, in the German capital of Berlin, a chemist named Otto Hahn set up a new experiment in his lab.

From "Bomb" by Steve Sheinkin