fratricide
Concise Oxford English Dictionary © 2008 Oxford University Press:
fratricide /ˈfratrɪsʌɪd/
▶noun
- 1 the killing of one's brother or sister.
■ a person who does this.
- 2 the accidental killing of one's own forces in war.
– derivatives
fratricidal adjective.
fratricidal adjective.
'fratricide' also found in these Oxford entries:

