IAA may refer to:

Science and medicine

Terminology

Indole-3-acetic acid Indole-3-acetic acid (IAA, 3-IAA) is the most common naturally occurring plant hormone of the auxin class. It is the best known of the auxins, and has been the subject of extensive studies by plant physiologists. IAA is a derivative of indole, con ...

, a plant hormone * Aux/IAA repressors, a class of early

auxin Auxins (plural of auxin ) are a class of plant hormones (or plant-growth regulators) with some morphogen-like characteristics. Auxins play a cardinal role in coordination of many growth and behavioral processes in plant life cycles and are essent ...

responsive transcription factors in plants *

Inflammatory aortic aneurysm Inflammatory aortic aneurysm (IAA), also known as Inflammatory abdominal aortic aneurysm (IAAA), is a type of abdominal aortic aneurysm (AAA) where the walls of the aneurysm become thick and inflamed. Similar to AAA, IAA occurs in the abdominal re ...

, a medical condition * Insulin autoantibody, used in diagnosing Latent autoimmune diabetes *

Interrupted aortic arch Interrupted aortic arch is a very rare heart defect (affecting 3 per million live births) in which the aorta is not completely developed. There is a gap between the ascending and descending thoracic aorta. In a sense it is the complete form of a coa ...

, a medical condition * Iodoacetamide, an alkylating agent *

Isoamyl alcohol Isoamyl alcohol is a colorless liquid with the formula , specifically (H3C–)2CH–CH2–CH2–OH. It is one of several isomers of amyl alcohol (pentanol). It is also known as isopentyl alcohol, isopentanol, or (in the IUPAC recommended nomencla ...

, a common name for 3-Methylbutan-1-ol

Institutions & associations

Academia Sinica Institute of Astronomy and Astrophysics An academy (Attic Greek: Ἀκαδήμεια; Koine Greek Ἀκαδημία) is an institution of tertiary education. The name traces back to Plato's school of philosophy, founded approximately 386 BC at Akademia, a sanctuary of Athena, the go ...

, a research institute in Taiwan *

Instituto Antártico Argentino The Instituto Antártico Argentino (, abbrevriated IAA) is the Argentine federal agency in charge of orientating, controlling, addressing and performing scientific and technical research and studies in the Antarctic. It is under the supervision of ...

, Argentine Antarctic Institute: federal agency for Antarctic research * Instituto de Arqueología Amazónica, archeological research institute in Peru *

Instituto de Astrofísica de Andalucía The Institute of Astrophysics of Andalusia (, IAA-CSIC) is a research institute funded by the High Council of Scientific Research of the Spanish government Consejo Superior de Investigaciones Científicas (CSIC), and is located in Granada, And ...

(IAA-CSIC), research institute in Spain * International Academy of Architecture, Bulgarian NGO & NPO *

International Academy of Astronautics The International Academy of Astronautics (IAA) is a Paris-based non-government association for the field of astronautics. It was founded in Stockholm, Sweden) on August 16, 1960, by Dr. Theodore von Kármán. It was recognised by the United Nation ...

, Swedish NGO *

International Actuarial Association The International Actuarial Association (IAA) is a worldwide association of local professional actuarial associations. History The IAA is the continuation of the ''Comité Permanent des Congrès d’Actuaires'', established in 1895, as an assoc ...

, worldwide association of actuarial associations * International Astrostatistics Association *

Israel Antiquities Authority The Israel Antiquities Authority (IAA, ; , before 1990, the Israel Department of Antiquities) is an independent Israeli governmental authority responsible for enforcing the 1978 Law of Antiquities. The IAA regulates excavation and conservatio ...

, Israeli governmental authority * Israeli Astronomical Association

Aviation

* Igarka Airport IATA code * Indianapolis Airport Authority * Iran Aseman Airlines, an Iranian airline *

Irish Aviation Authority The Irish Aviation Authority (IAA) () is a commercial semi-state company in Ireland responsible for the regulation of safety aspects of air travel. Its head office is in The Times Building in Dublin. Background The authority regulates the safe ...

Israel Airports Authority The Israel Airports Authority (IAA, , ''Reshut Sdot HaTe'ufa BeYisra'el''; ) was founded in 1977 as a Government-owned corporation, public corporation mandated by the Israel Airports Authority Law. The authority is responsible for the management ...

Automobile

International Motor Show Germany The International Motor Show Germany or International Mobility Show Germany, in German known as the ''Internationale Automobil-Ausstellung'' (''IAA'' – International Automobile Exhibition), is one of the world's largest mobility trade fairs. I ...

, known natively as Internationale Automobil-Ausstellung

Computing

* Interactive Achievement Awards, now known as

D.I.C.E. Awards The D.I.C.E. Awards (formerly the Interactive Achievement Awards) is an annual awards show in the video game industry, and commonly referred to as the video game equivalent of the Academy Awards. The awards are arranged by the Academy of Inter ...

Education

Idyllwild Arts Academy Idyllwild Arts Academy is a private school located in Idyllwild, in the San Jacinto Mountains and San Bernardino National Forest, within western Riverside County, California. The school was founded in 1946. It was previously known as Idyllwil ...

, a private high school in Idyllwild, California * Intercollegiate Athletic Association, former name of the

National Collegiate Athletic Association The National Collegiate Athletic Association (NCAA) is a nonprofit organization that regulates College athletics in the United States, student athletics among about 1,100 schools in the United States, and Simon Fraser University, 1 in Canada. ...

Interlochen Arts Academy Interlochen Center for the Arts ( '; also known as I.C.A. or Inty) is a Nonprofit organization, non-profit corporation which operates Visual arts education, arts education institutions and Music venue, performance venues. Established in 1928 b ...

, a boarding school at the Interlochen Center for the Arts * Inter-American Academy of Guayaquil, an international school in Ecuador

Politics

Information Affairs Authority The Information Affairs Authority (IAA) is Bahrain's ministry of information that was formed in July 2010. The president of IAA is appointed directly by the King of Bahrain and has the rank of a minister (government), minister in the Bahrain go ...

of Bahrain

Sports

International Ammunition Association The International Ammunition Association (IAA) is a nonprofit organization whose stated purpose is to foster interest and knowledge in ammunition Ammunition, also known as ammo, is the material fired, scattered, dropped, or detonated from a ...

Associations (non-science-related)

* Illinois Agricultural Association * Immigration Appellate Authority (UK) * Independent Ambulance Association representing private ambulance services in the UK * Indian Association of Alberta *

Institute for Applied Autonomy The Institute for Applied Autonomy was an activist group of anonymous artists known for employing technology in protest. The group focused on dissemination of knowledge, autonomy, and methods of self-determination through artistic expression and ap ...

International Advertising Association The International Advertising Association (IAA) is a global association that represents marketers, ad agencies and mass media that carries advertisements. The association is headquartered in New York City and maintains chapters in 77 countries. ...

, international marketing industry association * International Association of Art * Investment Adviser Association

Other uses

* Id al Adha, Muslim holiday *

Intelligence Authorization Act The Intelligence Authorization Act is a yearly bill implemented in order to codify covert, clandestine operations and defines requirements for reporting such operations to the Congress. The first act was passed along with the Intelligence Overs ...

(1991 - U.S.) * Islamic Army of Aden, militant group designated as a terrorist organization by Bahrain, Canada and the UK * International Affairs Agency, parody of the Central Intelligence Agency in ''

Grand Theft Auto V ''Grand Theft Auto V'' is a 2013 action-adventure game developed by Rockstar North and published by Rockstar Games. It is the seventh main entry in the Grand Theft Auto, ''Grand Theft Auto'' series, following 2008's ''Grand Theft Auto IV'', and ...

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