What does casevac mean?
A casevac is the urgent evacuation of a wounded or injured person — most commonly a soldier — from a battlefield or other hazardous environment to safety where medical care can begin. The term is a blend of "casualty" and "evacuation," and it emerged as military shorthand during the twentieth century, particularly in contexts involving helicopters capable of landing in combat zones. Casevac can refer both to the evacuation itself and to the aircraft, vehicle, or mission that carries it out, as in "a night casevac under fire." Closely related to but narrower than "medevac," which describes medical evacuation generally, casevac specifically implies immediate extraction from danger rather than routine transport between medical facilities. The word remains standard vocabulary among armed forces, emergency responders, and journalists covering conflict.
nounA casevac is the emergency evacuation of a casualty from a combat zone or other hazardous area to a place of medical treatment; it also denotes an aircraft or mission dedicated to this purpose.
- The evacuation of a wounded or injured person from a battlefield or other dangerous location for medical treatment.
- An aircraft, vehicle, or operation designated for such an evacuation.
"The helicopter flew a night casevac under heavy fire to reach the wounded patrol."
"The squad called for an urgent casevac after two of their number were hit by shrapnel."
"The Chinook was diverted mid-flight to perform a casevac near the forward operating base."
Standard pluralization applies when referring to multiple evacuation events or aircraft.
"The unit carried out several casevacs over the course of the night."
Casevac is pure military shorthand — a blend of 'casualty' and 'evacuation' that soldiers have used since at least World War II to describe the race to get the wounded out alive.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of casevac
Casevac is a twentieth-century military blend combining "casualty" and "evacuation." The underlying root is the Latin verb "cadere," meaning "to fall," which also gave English "casual," "casualty," "occasion," and "cadence." The abbreviation arose as operational jargon, likely gaining currency during the Second World War era alongside related clipped forms like "evac," and has since become established in military dictionaries and usage.
Related word forms
How casevac is actually used
Casevac is military jargon, used chiefly by armed forces personnel and in war reporting. It is typically written uncapitalized and often functions attributively (as in 'a casevac helicopter'). It carries a serious, operational register and is rarely used outside military or emergency-services contexts.
Easily confused with casevac
"Medevac" refers more broadly to medical evacuation of patients by air or ground in any context, while "casevac" specifically denotes urgent removal of casualties directly from a battlefield or danger zone.