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

 

disjunction

 noun
noun
BrE BrE//dɪsˈdʒʌŋkʃn//
 
; NAmE NAmE//dɪsˈdʒʌŋkʃn//
 
(less frequent disjuncture
BrE BrE//dɪsˈdʒʌŋktʃə(r)//
 
; NAmE NAmE//dɪsˈdʒʌŋktʃər//
 
)
 
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disjunction (between A and B) (formal) a difference between two things that you would expect to be in agreement with each other the wide disjunction between the cultural norms of his home and community and those of the school Word Origin late Middle English: from Latin disjunctio(n-), from disjungere ‘disjoin’.
See the Oxford Advanced American Dictionary entry: disjunction