fratricidal
🇺🇸
/ˌfrætrɪˈsaɪdl/
🇬🇧
/ˌfrætrɪˈsaɪdl/
related to or involving the act of killing one's own brother or sister
The two brothers engaged in a fratricidal conflict over their inheritance.
两兄弟因遗产问题发生了兄弟相残的冲突。