fratricide

noun
🔊/ˈfrætrɪsaɪd/
🔊/ˈfrætrɪsaɪd/
(formal)
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  1. [uncountable, countable] the crime of killing your brother or sister; a person who is guilty of this crime杀害兄弟(或姐妹)罪;杀害兄弟(或姐妹)者 compare matricide, parricide, patricideTopics Crime and punishmentc2
  2. [uncountable, countable] the crime of killing people of your own country or group; a person who is guilty of this crime杀害同胞罪;杀害同胞者Topics Crime and punishmentc2
  3. [uncountable] (especially North American English) the act of killing by accident your own forces in war (战争中)误致己方伤亡synonym friendly fire
  4. Word Originlate 15th cent. (denoting a person who kills their brother or sister, derived from Latin fratricida): the primary current sense comes via French from late Latin fratricidium, from frater ‘brother’ + -cidium, from caedere ‘kill’.