Definition of causality noun from the Oxford Advanced Learner's Dictionary

 

causality

 noun
noun
BrE BrE//kɔːˈzæləti//
 
; NAmE NAmE//kɔːˈzæləti//
 
(also causation)[uncountable](formal)
 
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the relationship between something that happens and the reason for it happening; the principle that nothing can happen without a cause Word Origin late 15th cent.: from French causalité or medieval Latin causalitas, from Latin causa ‘cause’.
See the Oxford Advanced American Dictionary entry: causality