See also: meta-ethics
- (ethics) The descriptive study of philosophical ethical systems, especially with regard to their key concepts, techniques of reasoning and analysis, and linguistic conventions.
- “metaethics” in Dictionary.com Unabridged, Dictionary.com, LLC, 1995–present.
- “metaethics” in Microsoft's Encarta World English Dictionary, North American Edition (2007)
- Oxford English Dictionary, second edition (1989)
- The Encyclopedia of Philosophy, Paul Edwards (ed.), Macmillan, 1967. See: "Ethics, Problems of" by Kai Nielsen, vol. 3, pp. 117-134.