Evacuation refers to

1. Removal of a patient by any of a variety of transport means from a theater of military operation, or between health services capabilities, for the purpose of preventing further illness or injury, providing additional care, or providing disposition of patients from the military health care system.  

2. The clearance of personnel, animals, or materiel from a given locality.    

3. The controlled process of collecting, classifying, and shipping unserviceable or abandoned materiel, United States or foreign, to appropriate reclamation, maintenance, technical intelligence, or disposal facilities.   

4.  The ordered or authorized departure of noncombatant evacuees from a specific area to another in the same or different countries by Department of State, Department of Defense, or appropriate military commander.

Webster Dictionary Meaning

1. Evacuation
- The act of emptying, clearing of the contents, or discharging.
- Withdrawal of troops from a town, fortress, etc.
- Voidance of any matter by the natural passages of the body or by an artificial opening; defecation; also, a diminution of the fluids of an animal body by cathartics, venesection, or other means.
- That which is evacuated or discharged; especially, a discharge by stool or other natural means.
- Abolition; nullification.
Category: Defense Terms
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