Casualty
A casualty was a person who suffered an accident, injury, or other trauma. It often referred to fatalities, but non-fatal injuries were also considered casualties.

Military use indicated those combatants rendered combat-ineffective, whether by death, injury, or capture. Civilian casualties was a military term that described civilian or non-combatant persons killed or injured by military action. (; )

During wars, such as the Dominion War, the numbers of casualties would increase significantly, especially among military personnel. (, etc.)

During Earth's World War III nuclear weapons accounted for six hundred million casualties. ()

When  suggested using  stun grenades to free Malcolm Reed from the Novans, Captain Jonathan Archer dismissed this suggestion as he didn't want to risk any more casualties. ()

Because of the high tensions between Andoria and  would any casualty make the situation even more worse, according to Sub-commander T'Pol in 2151. ()

To justify his actions taking a Nausicaan prisoner and hunting down a Nausicaan ship, Matthew Ryan told Shaw that they've taken enough casualties and it was time they started inflicting some of their own. ()

List of casualties 
 Alternate reality casualties, casualties from the alternate reality
 Bajoran Militia casualties, casualties from the Bajoran Militia since its formation in 2369
 Civilian casualties, casualties among civilians, and irregular military forces such as the Bajoran Resistance, non-Starfleet members of the Maquis, and the Cardassian Rebellion
 MACO casualties, casualties from United Earth's Military Assault Command Operations units
 Mirror universe casualties, casualties from the mirror universe
 Starfleet casualties
 Starfleet casualties (22nd century), casualties from the United Earth/Coalition of Planets/Federation Starfleet between the years 2101 and 2200
 Starfleet casualties (23rd century), casualties from the Federation Starfleet between the years 2201 and 2300
 Starfleet casualties (24th century), casualties from the Federation Starfleet between the years 2301 and 2400
 Vulcan casualties, casualties from 's non-Starfleet military and intelligence branches

See also 
 Casualty report
 Death
 Redshirt
 Termination report

External link 
 
Death