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

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

The 24,000-square-foot building was erected in 1965 by shopping mall pioneer and developer Ernest Hahn to serve as his corporate headquarters.

From Los Angeles Times • May 10, 2026

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

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

From The Wall Street Journal • Apr. 22, 2026

When Luis Alvarez burst in on his seminar with news of the first report of fission’s discovery by Otto Hahn and Fritz Strassmann, Oppenheimer had responded instantly, “That’s impossible.”

From "Big Science" by Michael Hiltzik