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Noun: Department of Defense
  1. The federal department responsible for safeguarding national security of the United States; created in 1947
    - Defense Department [US], United States Department of Defense, Defense [US], DoD

Type of: executive department

Encyclopedia: Department of Defense

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department
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Department of Agriculture
department of anthropology
department of biology
department of chemistry
Department of Commerce
Department of Commerce and Labor
department of computer science
department of corrections
Department of Defense
Department of Defense Laboratory System
department of economics
Department of Education
Department of Energy
Department of Energy Intelligence
department of English
Department of Health and Human Services
Department of Health Education and Welfare
department of history
Department of Homeland Security