'Plagiarism' definitions:

Definition of 'plagiarism'

From: WordNet
noun
A piece of writing that has been copied from someone else and is presented as being your own work
noun
The act of plagiarizing; taking someone's words or ideas as if they were your own [syn: plagiarism, plagiarization, plagiarisation, piracy]

Definition of 'Plagiarism'

From: GCIDE
  • Plagiarism \Pla"gia*rism\ (pl[=a]"j[.a]*r[i^]z'm or pl[=a]"j[i^]*[.a]*r[i^]z'm; 277), n. [Cf. F. plagiarisme.]
  • 1. The act or practice of plagiarizing. [1913 Webster]
  • 2. That which is plagiarized; a work which has been plagiarized. [1913 Webster]