Definition according to Legal Dictionary (law.com):
n. taking the writings or literary concepts (a plot, characters, words) of another and selling and/or publishing them as one's own product.
Definition according to Merriam-Webster:
: the act of using another person's words or ideas without giving credit to that person : the act of plagiarizing something
In Boris Kachka's article Proust Wasn't a Neuroscientist. Neither was Jonah Lehrer an overarching question that can be drawn is...Is the term plagiarism too broad of a term? In what ways? Does the term need to be refined, can it be refined and how?
Self-plagiarism. Is it wrong? Is it really plagiarism? Any influence on other types of plagiarism?
Other topics you should be prepared to discuss: Plagiarism and its punishment. Unnoticed plagiarism - should we be cautious/worried?