Definition of utilitarianism noun from the Oxford Advanced American Dictionary

 

utilitarianism

 noun
noun
NAmE//yuˌtɪləˈtɛriəˌnɪzəm//
 
[uncountable](philosophy)
 
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the belief that the right course of action is the one that will produce the greatest happiness of the greatest number of people
See the Oxford Advanced Learner's Dictionary entry: utilitarianism