Relating to ethics; in conformity with the rules governing personal and professional conduct.
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1) conforming to accepted professional standards of conduct
2) of a drug restricted to sale only on a doctor's prescription
eth·i·cal·ly 'eth-i-k(ə-)lē adv
ethical n an ethical drug
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eth·i·cal (ethґĭ-kəl) 1. in accordance with the principles which govern right conduct. 2. pertaining to ethics in general or to the discipline of ethics.Medical dictionary. 2011.