plagiarism

Definition from Nolo’s Plain-English Law Dictionary

Deliberately passing off somebody elses original expression or creative ideas as ones own. Plagiarism can be a violation of law if copyrighted expression is taken. Often, however, plagiarism does not violate any law but marks the plagiarist as an unethical person in the political, academic, or scientific community where the plagiarism occurs.

Definition provided by Nolo’s Plain-English Law Dictionary.