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metaethics

or met·a-eth·ics

[met-uh-eth-iks, met-uh-eth-]
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noun (usually used with a singular verb)
  1. the philosophy of ethics dealing with the meaning of ethical terms, the nature of moral discourse, and the foundations of moral principles.
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Origin of metaethics

First recorded in 1945–50; meta- + ethics
Related formsmet·a·eth·i·cal, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018