The Collaborative International Dictionary
MASH \MASH\, MASH \M*A*S*H\, n. (Mil.) An abbreviation for Mobile Army Surgical Hospital, consisting of the equipment and personnel required to perform emergency operations on injured soldiers, located in tents near the front lines of combat; as, he worked in the 25th MASH.
Wikipedia
The Mobile Army Surgical Hospital (MASH) refers to a United States Army medical unit serving as a fully functional hospital in a combat area of operations. The units were first established in August 1945, and were deployed during the Korean War and later conflicts. The term was made famous in the television series M*A*S*H, which depicted a fictional MASH unit. The U.S. Army deactivated the last MASH unit on February 16, 2006. The successor to the Mobile Army Surgical Hospital is the Combat Support Hospital.
Usage examples of "mobile army surgical hospital".
It was together with Duke that Hawkeye had arrived, worked at and left the 4077th Mobile Army Surgical Hospital in Korea.
Her Mobile Army Surgical Hospital unit was destroyed during on attack three months before American forces withdrew from Saigon.
What had begun as the main first-aid station, which serviced dozens of others throughout the area during the Carpathia wake, now looked like a mobile army surgical hospital.