D defs.my
Entry 1 sense Webster, 1913

Ethics

/(ĕth"ĭks)/ · Eth·ics · IPA /ˈɛθ.ɪks/
01 n. The science of human duty; the body of rules of duty drawn from this science; a particular system of principles and rules concerting duty, …
  1. 1.
    The science of human duty; the body of rules of duty drawn from this science; a particular system of principles and rules concerting duty, whether true or false; rules of practice in respect to a single class of human actions; as, political or social ethics; medical ethics.
    “The completeness and consistency of its morality is the peculiar praise of the ethics which the Bible has taught.” I. Taylor.