A set of beliefs concerning the nature, cause, and purpose of the universe, especially when considered as the creation of a superhuman agency. It usually involves devotional and ritual observances and often a moral code for the conduct of human affairs. (Random House Collegiate Dictionary, rev. ed.)
The Christian faith, practice, or system of the Catholic Church, specifically the Roman Catholic, the Christian church that is characterized by a hierarchic structure of bishops and priests in which doctrinal and disciplinary authority are dependent upon apostolic succession, with the pope as head of the episcopal college. (From Webster, 3d ed; American Heritage Dictionary, 2d college ed)
A philosophically coherent set of propositions (for example, utilitarianism) which attempts to provide general norms for the guidance and evaluation of moral conduct. (from Beauchamp and Childress, Principles of Biomedical Ethics, 4th ed)
Financial assistance -- ethical aspects. : Confronting corruption, building accountability : lessons from the world of international development advising / Lloyd J. Dumas, Janine R. Wedel and Greg Callman
Ethical issues: abortion & birth control -- Europe. : European women's movements and body politics : the struggle for autonomy / edited by Joyce Outshoorn, Institute of Political Science, Leiden University, the Netherlands [and three others]