[ fra-tri-sahyd, frey- ]
/ ˈfræ trɪˌsaɪd, ˈfreɪ- /


a person who kills his or her brother.
the act of killing one's brother.

Origin of fratricide

1490–1500; (def 1) < Middle French < frātricīda, equivalent to frātri- (combining form of frāter) brother + -cīda -cide; (def 2) < Middle French < Late Latin frātricīdium, equivalent to frātricīd(a) + -ium noun suffix


frat·ri·cid·al, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Examples from the Web for fratricidal

British Dictionary definitions for fratricidal

/ (ˈfrætrɪˌsaɪd, ˈfreɪ-) /


the act of killing one's brother
a person who kills his brother
military the destruction of or interference with a nuclear missile before it can strike its target caused by the earlier explosion of a warhead at a nearby target

Derived forms of fratricide

fratricidal, adjective

Word Origin for fratricide

C15: from Latin frātricīda; see frater 1, -cide
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012