ca·su·al·ty

/ˈkæʒəwəlti/ noun, pl -ties [count]

1 : a person who is hurt or killed during an accident, war, etc.

a low number of casualties

The army suffered/took/sustained heavy casualties [=many soldiers were killed or wounded] in the town.

casualty rates [=the number of people or wounded killed each day]

2 : a person or thing that is harmed, lost, or destroyed : ↑victim

— usually + of

The tree was a casualty of the high winds.

The factory was a casualty of the depression.