noun
casualties; the killed and wounded
Refers to people who are killed or injured, especially in accidents, disasters, or conflicts. Often used in news reports.
地震による死傷者は数百人に上った。
The casualties from the earthquake reached several hundred.
事故の死傷者数はまだ確認されていない。
The number of casualties in the accident has not yet been confirmed.
負傷者 refers specifically to the injured, excluding fatalities, whereas 死傷者 includes both dead and wounded.
Compound of 死 (death), 傷 (injury), and 者 (person). The reading is on'yomi, and the word is a straightforward Sino-Japanese compound.