Definition of Acheson, Dean in US English:

Acheson, Dean

proper noun

  • (1893–1971), US statesman; secretary of state 1949–53; full name Dean Gooderham Acheson. He urged international control of nuclear power, was instrumental in the formation of NATO, and implemented the Marshall Plan and the Truman Doctrine.

Pronunciation

Acheson, Dean

/ˈaCHəsən/