| the executive head of the postal system of a country. |
| postmaster general n. pl. postmasters general Abbr. PMG The executive head of a national postal service. |
The head of the United States Postal Service. Until 1970, the postmaster general was head of the federal Post Office Department and a member of the president's cabinet. In 1970, the Postal Service was set up as an independent agency in place of the Post Office Department. The Postal Service is operated like a private corporation, although postal workers receive the benefits of federal employees.