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Definition 2024

mass murderer ‎(plural mass murderers)

someone who commits a mass murder — See also translations at : serial killer

Chinese:
Mandarin: (no exact term exists) 殺戮眾多的人, 杀戮众多的人 ‎(shālù zhòngduō de rén)
Danish: massemorder c
Estonian: massimõrvar (et)
Finnish: joukkomurhaaja (fi)
French: tueur de masse m, meurtrier de masse m