Oppenheimer

American  

[op-uhn-hahy-mer] / ˈɒp ənˌhaɪ mər /

noun

1. J(ulius) Robert, 1904–67, U.S. nuclear physicist.

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Oppenheimer British  

/ ˈɒpənˌhaɪmə /

noun

1. J ( ulius ) Robert. 1904–67, US nuclear physicist. He was director of the Los Alamos laboratory (1943–45), which produced the first atomic bomb. He opposed the development of the hydrogen bomb (1949) and in 1953 was alleged to be a security risk. He was later exonerated

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Oppenheimer Scientific  

/ ŏp′ən-hī′mər /

1. American physicist who directed the Los Alamos, New Mexico, laboratory during the development of the first atomic bomb (1942–1945). After World War II, he became an advocate for the peaceful use of atomic energy and opposed the development of the hydrogen bomb.

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Example Sentences

See Examples For:

Oppenheimer

Though Intuitive posted both higher 2Q profits and sales, Oppenheimer says the company is likely to face competition from homegrown Chinese systems and its shift to extended use instruments is bound to pressure FY27 growth.

From The Wall Street Journal ● Jul. 17, 2026

There was further praise for the "staggering" set pieces from the Standard's Nick Howells, external, who said The Odyssey was a "far more astonishing experience" than Oppenheimer.

From BBC ● Jul. 15, 2026

On June 30, Oppenheimer analyst Chris Kotowski lowered his ratings for Goldman Sachs and Morgan Stanley to “underperform” from “perform,” and dropped Bank of America and Citigroup to “perform” from “outperform.”

From MarketWatch ● Jul. 12, 2026

His last film, Oppenheimer, had just won seven Oscars and grossed around a billion dollars worldwide.

From BBC ● Jul. 8, 2026

Oppenheimer had received his doctorate only two years earlier under Max Born at Gottingen, where he had communed with such rising stars of quantum mechanics as Werner Heisenberg and Paul Ehrenfest.

From "Big Science" by Michael Hiltzik