Oppenheimer

American  

[op-uhn-hahy-mer] / ˈɒp ənˌhaɪ mər /

noun

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

---

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

---

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.

---

Example Sentences

It’s the biggest-ever debut for a film produced by the e-commerce and cloud-computing giant and the biggest opening for any Hollywood film not part of an existing franchise since “Oppenheimer” in the summer of 2023.

From The Wall Street Journal

But in Mark Oppenheimer’s “Judy Blume: A Life,” her meteoric rise appears fueled by a confluence of fortune that would have been unlikely at any other moment.

From The Wall Street Journal

Her biographer, Mark Oppenheimer, is a middle-aged father of five.

From Los Angeles Times

Oppenheimer analyst Chris Kotowski defended his Outperform rating on Blue Owl stock Thursday, arguing that the firm’s recent troubles weren’t symptomatic of a larger issue.

From Barron's

In the intervening period, Murphy has won an Oscar, a Bafta and a Golden Globe for Oppenheimer.

From BBC