a private organization, created by an act of Congress (1863), that furthers science and advises the U.S. government on scientific and technical issues. Abbr.: N.A.S., NAS
NATIONAL ACADEMY OF SCIENCES
Meaning of NATIONAL ACADEMY OF SCIENCES in English
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012