Normative ethics:
Normative ethics is the study of ethical behaviour, and is the branch of philosophical ethics that investigates the questions that arise regarding how one ought to act, in a moral sense. ... In this context normative ethics is sometimes called prescriptive, as opposed to descriptive ethics.
Meta ethics:
Metaethics is the study of moral thought and moral language. Rather than addressing questions about what practices are right and wrong, and what our obligations to other people or future generations are – questions of so-called 'normative' ethics – metaethics asks what morality actually is.
Applied ethics:
Applied ethics refers to the practical application of moral considerations. It is ethics with respect to real-world actions and their moral considerations in the areas of private and public life, the professions, health, technology, law, and leadership.
