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

 

plagiarism

 noun
noun
BrE BrE//ˈpleɪdʒərɪzəm//
 
; NAmE NAmE//ˈpleɪdʒərɪzəm//
 
[uncountable, countable](disapproving)
 
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an act of plagiarizing something; something that has been plagiarized There were accusations of plagiarism. a text full of plagiarisms Word Origin early 17th cent.: from Latin plagiarius ‘kidnapper’ (from plagium ‘a kidnapping’, from Greek plagion) + -ism.
See the Oxford Advanced American Dictionary entry: plagiarism