ALL meanings of manhattan project
Man·hat·tan proj·ect
M m - noun manhattan project U.S. History. the unofficial designation for the U.S. War Department's secret program, organized in 1942, to explore the isolation of radioactive isotopes and the production of an atomic bomb: initial research was conducted at Columbia University in Manhattan. 1
- noun manhattan project (during World War II) the code name for the secret US project set up in 1942 to develop an atomic bomb 0