genocide Pronunciation: /ˈjenəˌsīd
NOUN- The deliberate killing of a large group of people, especially those of a particular ethnic group or nation.
- Origin: 1940s: from Greek genos 'race' + -cide.
http://www.historyplace.com/worldhistory/genocide/ (LINK TO GENOCIDE IN THE 20th CENTURY)
Merriam-Webster Dictionary, The Oxford English Dictionary, U.S. Law (18 USC 1091) and International Law have different definitions: but the common elements of all these definitions define genocide as "the deliberate destruction of a race, religion or ethnicity by various methods." (http://en.wikipedia.org/wiki/Genocides_in_history#United_States)