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

The comments underscore AMD’s fierce competition in the space, with Oppenheimer analysts writing in a note that the company may continue playing catch-up with Nvidia.

From The Wall Street Journal ● Aug. 6, 2026

Nolan's first movie since 2023 Oscar-winner "Oppenheimer", it has wowed audiences and critics, topping the US box office for two straight weeks and already taking $640 million worldwide.

From Barron's ● Jul. 30, 2026

Analysts at Oppenheimer led by Colin Rusch said they “continue to be encouraged by the company’s capital efficiency as it executes against growth initiatives while buying back stock.”

From MarketWatch ● Jul. 22, 2026

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

Finally, he confessed to Oppenheimer that he was so thoroughly at sea he would have to drop the course.

From "Big Science" by Michael Hiltzik