[de.tach.ment] n (1669) 1: the action or process of detaching: separation
2. a: the dispatch of a body of troops or part of a fleet from the main body for a special mission or service b: the part so dispatched c: a permanently organized separate unit usu. smaller than a platoon and of special composition 3 a: indifference to worldly concerns: aloofness b: freedom from bias or prejudice