postmaster general

American  

noun

plural

postmasters general

1. the executive head of the postal system of a country.

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postmaster general British  

noun

1. the executive head of the postal service in certain countries

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postmaster general Cultural  

1. 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.

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Etymology

Origin of postmaster general

First recorded in 1620–30