subdepartment

noun
sub·​de·​part·​ment | \ ˌsəb-di-ˈpärt-mənt How to pronounce subdepartment (audio) \
variants: or less commonly sub-department
plural subdepartments also sub-departments

Definition of subdepartment

: a department (as of an organization) that is part of a larger department The Counter Terrorism Bureau [of the New York City Police Department] takes on a more focused role, functioning as the department's think tank on terrorism prevention and overseeing various subdepartments such as the NYPD/FBI Joint Terrorist Task Force.— Brad Reagan

First Known Use of subdepartment

1798, in the meaning defined above

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