Definitions for nc-17
Random House Webster's College Dictionary
Category: Common Vocabulary
Also, N.C. North Carolina.
Trademark. no children under 17: a motion-picture rating advising that persons under the age of 17 will not be admitted to the film.
Ref: Compare G (def. 2), 3 5 PG, 2 PG-13, 3 R (def. 4), 3 5 X (def. 8). 4 8
Only suitable for adults.