detachment

noun8

1. •
   The action of detaching; separation.
2. •
   The state of being detached or disconnected; insulation.
3. •
   The separation of a military unit from the main body for a particular purpose or special mission.
4. •
   Indifference to the concerns of others; disregard; nonchalance; aloofness.
5. •
   The unit so dispatched.
6. •
   A permanent unit organized for special duties.
7. •
   Any smaller portion of a main body separately employed.
8. •
   Absence of bias; impartiality; objectivity.