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multicide

British  
/ ˈmʌltɪˌsaɪd /

noun

  1. mass murder

"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

Example Sentences

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He prefers jaunty terms like multicide, megadeath and hemoclysm to sober, morally charged ones like genocide.

From New York Times

To many of the experts, the sexual perversion described by Henley and Brooks seemed a particularly significant ingredient of the multicide, or mass murder.

From Time Magazine Archive