/sen toor"ee euhn, -tyoor"-/ , n.
1. (in the ancient Roman army) the commander of a century.
2. ( cap. ) Mil. any one of various British battle tanks in service from 1945 to 1967.
[ 1225-75; ME centurion- (s. of centurio ), equiv. to centur ( ia ) CENTURY + -ion- -ION ]