AAA

organization that oversees non-professional sports

organization that provides its members with emergency road assistance (towing, etc.) and other automobile services (maps, travel planning, etc.)

method of fighting against aircraft (using cannons or Surface to air Missile)

AAA or Triple-A is a three-letter acronym that may refer to: Economic, political, and social American Automobile AssociationAmerican Australian AssociationAgricultural Adjustment Act, U.S. farm subsidy legislation of 1933 or the separate act of 1938Agricultural Adjustment Administration, the USDA agency established by the 33 Act.Alianza Anticomunista Argentina ('Argentine Anticommunist Alliance' in Spanish), an Argentinian far-right death squad of the mid-1970sAlianza Americana Anticomunista ('American Anticommunist Alliance' in Spanish), a paramilitary far-right Colombian organization, 1978-1979Alianza Apostólica Anticomunista (in Spain — see  1977 Atocha Massacre)American Academy of ActuariesAmerican Accounting AssociationAmerican Ambulance AssociationAmerican Angus AssociationAmerican Arbitration AssociationAssociation of Autonomous Astronauts, a global network of community based groups dedicated to building their own spaceships, est. 1995A so called credit rating, ex. Triple-A status.Allah, Army and AmericaThe FAA airport code for Logan County Airport (Illinois)The IATA airport code for Anaa Airport in French PolynesiaThe ICAO code for Ansett Australia, Australia
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AAA or AAA+ is an abbreviation for ATPases Associated with various cellular Activities. It is a protein superfamily in which the member proteins share a highly conserved module of approximately 230 amino acid residues.The characteristic of AAA proteins is the coupling of chemical energy by ATPase, provided by ATP hydrolysis, to mechanical force exerted on some macromolecular substrate. This usually requires a conformational change in the AAA protein in question.Members of the AAA family are found in all organisms and they are essential for many cellular functions.
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Against All Authority (often abbreviated -AAA-) is a DIY ska punk band. They were founded in Miami, Florida in 1992, driven by willingness to promote their message -- "questioning our economic differences and promoting our human similarities", as stated by their official site. A strong engagement in political and social issues is clearly evident in their lyrics. The band maintain a fierce DIY stance influenced by the approach of the Dead Kennedys and Subhumans. Early in their career the band decided to book concerts, make recordings and even produce band t-shirts on their own. Later they signed on independent label Hopeless Records, becoming one of their major bands. In addition to touring and recording, the band is frequently involved in demonstrations and social projects.
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AAA American Association of Anatomists. AAA 1. Abdominal aortic aneurysm 2. Aminoadipic acid 3. Aneurysm of ascending aorta [more]AAA - Community and Resources

Noun
1. an aneurysm of the abdominal aorta associated with old age and hypertension
(synonym) abdominal aortic aneurysm
(hypernym) aortic aneurysm

Anti-Aircraft Artillery