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

  

passive

 noun
noun
BrE BrE//ˈpæsɪv//
 
; NAmE NAmE//ˈpæsɪv//
 
Grammar
 
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(also passive voice) [singular] (grammar) the form of a verb used when the subject is affected by the action of the verb compare active See related entries: Grammar Word Origin late Middle English (in sense (2), also in the sense ‘(exposed to) suffering, acted on by an external agency’): from Latin passivus, from pass- ‘suffered’, from the verb pati.
See the Oxford Advanced American Dictionary entry: passive