Plagiarism is also known as "academic dishonesty" or "academic integrity."
Merriam-Webster’s Collegiate® Dictionary, 10th Edition
pla•gia•rize : to steal and pass off (the words or ideas of another) as one’s own : use (another’s production) without crediting the source ~ vi: to commit literary theft : present as new and original an idea or product derived from an existing source.
As it states on each of your course syllabi:
"All work submitted in this class must be your original work. Work should be generated exclusively for this class, unless given prior permission by the instructor. The use of sources (ideas, quotations, paraphrasing) should be properly referenced. Any other guidelines required for assignments will be given to you by your instructor and must also be adhered to. For the consequences of academic dishonesty, refer to the Student Handbook."