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National Academy of Sciences

noun
1.
a private organization, created by an act of Congress (1863), that furthers science and advises the U.S. government on scientific and technical issues.
Abbreviation: N.A.S., NAS.
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Encyclopedia Article for national academy sciences

National Academy of Sciences

nongovernmental American organization of scientists and engineers, established March 3, 1863, by act of Congress to serve as an official adviser to the government in all matters of science and technology. It is a self-perpetuating body of limited membership; new members are co-opted on the basis of distinguished contributions to research.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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