The act of a member of one species purposefully causing the extinction of another species.
If a man wiped out all mosquitos, he would have commited xenocide.
by Ouji Sukotto September 13, 2003
The act of causing the complete extinction of an entire species.
George committed xenocide against frogs.
by Shadowcast August 31, 2009
Xenocide is genocide directed at an alien species.
Xenocide is awesome.
by Richard L November 10, 2005