fratricidal

enUK

frat·ri·cide

F0301800 (frăt′rĭ-sīd′)n.1. a. The killing of one's brother or sister.b. One who has killed one's brother or sister.2. The accidental killing of an ally caused by a discharge of a military weapon.
[Middle English, from Old French, from Latin frātricīdium and frātricīda : frāter, frātr-, brother; see bhrāter- in Indo-European roots + -cīdium and -cīda, -cide.]
frat′ri·cid′al (-sīd′l) adj.
Translations
fratricida