Pronunciation: (eth'i-kul), [key]
1. pertaining to or dealing with morals or the principles of morality; pertaining to right and wrong in conduct.
2. being in accordance with the rules or standards for right conduct or practice, esp. the standards of a profession: It was not considered ethical for physicians to advertise.
3. (of drugs) sold only upon medical prescription.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.