American English

Definition of altruism noun from the Oxford Advanced American Dictionary

 

altruism

 noun
noun
NAmE//ˈæltruˌɪzəm//
 
[uncountable] (formal)
 
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the fact of caring about the needs and happiness of other people more than your own Politicians are not necessarily motivated by pure altruism.
NAmE//ˌæltruˈɪstɪk//
 
adjective altruistic behavior
See the Oxford Advanced Learner's Dictionary entry: altruism