Dictionary.com
Thesaurus.com
Showing results for Fat Man. Search instead for Fat+Hen.

Fat Man

American  

noun

  1. the code name for the plutonium-core, implosion-type atom bomb the U.S. first tested and then dropped on Nagasaki in 1945.


Compare meaning

How does fat-man compare to similar and commonly confused words? Explore the most common comparisons:

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Fat Man and Little Boy are holding steady. apnews.com/article/dei-...

From Salon • Mar. 10, 2025

The Fat Man bomb was dropped on Nagasaki on Aug. 9, 1945, three days after Hiroshima was devastated by Little Boy.

From Seattle Times • Sep. 22, 2023

Katie Hafner: So pretty much all of Los Alamos then retrenched around a different design, an implosion weapon that would become the Trinity device and then the Fat Man bomb that was dropped on Nagasaki.

From Scientific American • Aug. 3, 2023

Fat Man, a plutonium bomb of the kind tested at Trinity, was used on Nagasaki on Aug. 9, and the end of World War II soon followed.

From New York Times • Aug. 3, 2021

Fat Man was loaded into a B-29, and Sweeney and his crew took off and flew toward Japan early on the morning of August 9.

From "Bomb" by Steve Sheinkin

Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "Fat Man" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com