[ca.su.al.ty] n, pl -ties (15c) 1 archaic: chance, fortune "losses that befall them by mere ~ --Sir Walter Raleigh"
2: serious or fatal accident: disaster 3 a: a military person lost through death, wounds, injury, sickness, internment, or capture or through being missing in action b: a person or thing injured, lost, or destroyed: victim "the ex-senator was a ~ of the last election"