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n. pl. de·on·tol·o·gies
1. Ethical or moral theory concerned with duties and rights.
2. The doctrine that ethical status of an action lies in its adherence to a set of rules.

[Greek deon, deont-, obligation, necessity (from neuter present participle of dein, to need, lack; see deu-1 in the Appendix of Indo-European roots) + -logy.]

de·on′to·log′i·cal (-tə-lŏj′ĭ-kəl) adj.
de·on′to·log′i·cal·ly adv.
de′on·tol′o·gist n.
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common law judge is neither a consequentialist, nor a deontologist, nor
1) I wish to argue to the contrary that Socrates is best taken as a duty theorist or deontologist, for whom teleological considerations are irrelevant or, more precisely, come in only tangentially.
25] To control the risk of serious harm, a deontologist would want to limit the use of lotteries to environments where individuals have been offered sufficient awareness opportunities and have been properly informed about the consequences of being tested HIV positive, and about their rights, as well as how to access treatment and care.
A humanist ethic in which the moral judgment of an act is confined to the act itself, and not necessarily the consequences--for deontologist the ends never justify the means.
220) This Part focuses on the theory of ethics created by the most famous deontologist, Immanuel Kant.
One need not be a deontologist in order to at least raise some issues with this approach.
However, a deontologist may also strongly consider natural consequences of actions.
A utilitarian will point to the fact that the consequences of doing so will maximize well-being, a deontologist to the fact that, in doing so the agent will be acting in accordance with a moral rule such as 'Do unto others as you would be done by' and a virtue ethicist to the fact that helping the person would be charitable or benevolent.
A deontologist would base her decision on a moral rule like "Do unto others as you would be done by", or the principle of autonomy which requires respecting T's right to self-determination.
While Belaid, according to the standard definition of utilitarianism, is a utilitarian, the mayor appears to be a deontologist.
29) For a deontologist, the fact that an act leads to good consequences is irrelevant if it is wrongful.
As a deontologist would put it, these are moral causes that speak to us directly.