Chemistry

• 3-Nitrobenzanthrone
  3-Nitrobenzanthrone
  3-Nitrobenzanthrone is a chemical compound emitted in diesel exhaust; it is a potent carcinogen. It produced the highest score ever reported in the Ames test, a standard measure of the cancer-causing potential of toxic chemicals, far greater than the previous known strongest 1,8-dinitropyrene...
  
  
• 3-Nitrobenzyl alcohol
  3-Nitrobenzyl alcohol
  The compound 3-nitrobenzyl alcohol is an organic compound with the formula C7H7NO3.-Desorption mass spectrometry matrix:In mass spectrometry this compound is often abbreviated as "3-NBA" or "m-NBA." It has been used as a liquid matrix for fast atom bombardment and matrix-assisted laser desorption...
  
  
• n-Butylamine
  N-Butylamine
  n-Butylamine is an organic compound with the formula CH3CH2CH2CH2NH2. This colourless liquid is one of the four isomeric amines of butane, the others being sec-butylamine, tert-butylamine and isobutylamine. At standard temperature and pressure, n-butylamine is a liquid having the fishy,...
  
   an organic compound

Law

• National Bank Act, the primary federal legislation authorizing the creation of national banks in the United States

Sports

• National Boxing Association, a major boxing sanctioning body that became the World Boxing Association in 1962
• NBA Development League
  NBA Development League
  The NBA Development League, or NBA D-League, is the National Basketball Association's official minor league basketball organization. Known until summer 2005 as the National Basketball Development League , the NBA D-League started with eight teams in the fall of 2001...
  
  , the official minor league basketball organization of the National Basketball Association
• NBA TV
  NBA TV
  NBA TV is a television specialty channel that is dedicated to showcasing the sport of basketball in the United States. The network is financially backed by the National Basketball Association , which also uses NBA TV as a way of advertising their out of market package NBA League Pass, and partner...
  
  , a television network showcasing the National Basketball Association
• Nepal Basketball Association, the national basketball association of Nepal participating in the FIBA Asia
  FIBA Asia
  FIBA Asia is a zone within the International Basketball Federation which contains all 44 Asian FIBA federations.-National teams:East AsiaGulfMiddle AsiaSoutheast AsiaWest Asia-Top ten FIBA Asia teams:...
  
   zone of the International Basketball Federation (FIBA)

Non-sport organizations

• Narmada Bachao Andolan
  Narmada Bachao Andolan
  Narmada Bachao Andolan is social movement consisting of tribal people, adivasis, farmers, environmentalists and human rights activists against the Sardar Sarovar Dam being built across the Narmada river, Gujarat, India....
  
  , a political movement in India against a dam built on the Narmada River
• National Bar Association
  National Bar Association
  The National Bar Association was established in 1925 as the "Negro Bar Association" after Gertrude Rush, George H. Woodson, S. Joe Brown, James B. Morris, and Charles P. Howard, Sr. were denied membership in the American Bar Association. It represents the interests of African-American attorneys in...
  
   (United States)
• National Board of Accreditation
  National Board of Accreditation
  The National Board of Accreditation , India was established by AICTE as an autonomous body under section 10 of AICTE act, 1987 for periodic evaluations of technical institutions & programmes basis according to specified norms and standards as recommended by AICTE council...
  
  , an autonomous body in India which marks the quality of institutes in technical education
• National Book Award
  National Book Award
  The National Book Awards are a set of American literary awards. Started in 1950, the Awards are presented annually to American authors for literature published in the current year. In 1989 the National Book Foundation, a nonprofit organization which now oversees and manages the National Book...
  
  , an award given for literary achievement in the United States
• National Braille Association
  National Braille Association
  The National Braille Association, Inc. is a US organization aiming to provide continuing education to those who prepare braille, and to provide braille materials to persons who are visually impaired...
  
   (United States)
• Net Book Agreement
  Net Book Agreement
  The Net Book Agreement was a British fixed Book Price Agreement between publishers and booksellers which set the prices at which books were to be sold to the public....
  
   (United Kingdom)
• Neue Bach-Ausgabe
  Neue Bach-Ausgabe
  The Neue Bach-Ausgabe is the second complete edition of the music of Johann Sebastian Bach, published by Bärenreiter. The name is short for Johann Sebastian Bach: Neue Ausgabe sämtlicher Werke...
  
  , the second complete edition of the music of J. S. Bach
• Newcastle Brown Ale
  Newcastle Brown Ale
  Newcastle Brown Ale is a beer produced by Heineken International. It was introduced in 1927 by Newcastle Breweries. In 2005, brewing was moved out of Newcastle upon Tyne for the first time, to Dunston on the other side of the River Tyne, and in 2010 moved entirely to Tadcaster, North Yorkshire...
  
   (United Kingdom)
• North British Academy of Arts
  North British Academy of Arts
  The North British Academy of Arts was an art institution of Newcastle upon Tyne in northern England.-Overview:The Academy, sometimes known as the North British Academy of Arts, Science, Literature, and Music, was located in the Claremount Buildings on the western side of Barras Bridge on the...
  
  (United Kingdom)