Wiktionary
Usage examples of "medivacs".
There were two medivacs, and an APF with field medics and AG sleds to bring in the wounded.
Mellon had gotten out later than he had, when two more medivacs arrived at the fire base.
When the medivacs went back again for casualties, about all they found were dead.
When Korea came along, it refitted helicopters with special radio gear needed for medivacs and the increasingly complex ground-air networks.