INTERNECINE

internecine (in-t[schwa]r-nee-sin or in-t[schwa]r-nee-sIn or in-t[schwa]r-nes-een), adj. 1. Deadly; characterized by mass slaughter. 2. Mutually deadly; destructive of both parties (an internecine civil war). 3. Loosely, of or relating to conflict within a group (internecine faculty politics).