Mc‧Na‧ma‧ra, Robert S. /ˌmæknəˈmɑːrə $ ˈmæknəˌmærə ˈrɒbət $ ˈrɑːbərt/ 
 (1916–) a US politician who became Secretary of Defense in 1961, and who left his position 1968 because he and President 
Johnson did not agree about US policy in 
Vietnam. 
 [TahlilGaran] Dictionary of Contemporary English ▲