| native valve endocarditis |
infective endocarditis involving one or more of the natural heart valves, in contrast to prosthetic valve e.
출처: www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspz...
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| natural history |
"Natural history" is an umbrella term for what are now usually viewed as a number of distinct scientific disciplines. Most definitions include the study of living things (e.g. biology, including botany and zoology); other definitions extend the topic to include paleontology, ecology or biochemistry, as well as parts of geology and physics and even meteorology. A person interested in natural history is known as a naturalist. This was predominantly an amateur activity and not an occupation. ...
출처: en.wikipedia.org/wiki/Natural_history
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| National Highway Traffic Safety Administration |
The National Highway Traffic Safety Administration (NHTSA, often pronounced "nit-suh") is a U.S. Government agency, part of the Department of Transportation, responsible for setting safety standards and verifying compliance by automobile manufacturers. It also issues guidelines for consumers, and publishes the results of safety tests of various automobiles, to allow buyers to evaluate the anticipated behavior of an automobile in a crash. ...
출처: en.wikipedia.org/wiki/National_Highway_Traffic_Saf...
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| National Institute of Environmental Health Sciences |
The purpose of the National Institute of Environmental Health Sciences (NIEHS), as part of the U.S. National Institutes of Health, is to reduce the burden of human illness and dysfunction from environmental causes by understanding each of these elements and how they interrelate. ...
출처: en.wikipedia.org/wiki/National_Institute_of_Enviro...
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| natural |
In category theory, an abstract branch of mathematics, a natural transformation provides a way of transforming one functor into another while respecting the internal structure (i.e. the composition of morphisms) of the categories involved. Hence, a natural transformation can be considered to be a "morphism of functors". Indeed this intuition can be formalized to define so called functor categories. ...
출처: en.wikipedia.org/wiki/Natural_(category_theory)
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