organ
noun [ C ]
uk/ˈɔːɡən/ us COMMUNICATIONS
a newspaper or magazine that represents the opinions of a group or organization, or that is produced for a particular group of people:
The monthly journal was once the official organ of the Communist party.
She edits the company's house organ that is distributed to employees twice a year.
GOVERNMENT
an organization that works as part of a larger organization, for example, a government:
China's top national security policy organ
the courts and other government organs