Definition from Wiktionary, the free dictionary
- (philosophy) A doctrine that states that the only authentic knowledge is scientific knowledge, and that such knowledge can only come from positive affirmation of theories through strict scientific method, refusing every form of metaphysics.
- Practical spirit, sense of reality, concreteness.
- (law) A school of thought in jurisprudence in which the law is seen as separated from moral values, i.e. the law is posited by lawmakers (humans).
- (in philosophy): antipositivism
Derived terms 
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