aa
IPA: eɪˈeɪ
Root Word: AA
noun
- A member of Alcoholics Anonymous.
- An AA battery (energy-storage device).
- (US, baseball) Double-A: the second-highest level of play in Minor League Baseball after Triple-A (AAA).
- (US, military) USPS military code of Armed Forces – Americas.
- (volcanology) A form of lava flow associated with Hawaiian-type volcanoes, consisting of basaltic rock, usually dark-colored with a jagged and loose, clinkery surface. Compare pahoehoe.
- Several waterways in Europe.
- A river in northern France, flowing 93 km from near Bourthes, Pas-de-Calais department into the North Sea near Gravelines, Nord department.
- A small river in the Netherlands, flowing 72 km from near Nederweert, Limburg into the Dieze at 's-Hertogenbosch, North Brabant.
- A tributary of the Möhne river in North Rhine-Westphalia, Germany, part of the Rhine basin.
- A tributary of the Nether river in North Rhine-Westphalia, Germany, part of the Weser basin.
- A tributary of the Werre river in North Rhine-Westphalia, Germany, part of the Weser basin.
- A village in Ida-Viru County, northern Estonia, on the Gulf of Finland.
- A surname from Norwegian.
- Initialism of affirmative action. [(uncountable) A set of policies or programs providing advantages for people of a group who are seen to have traditionally been the target of discrimination]
- Initialism of air armament.
- Initialism of air attaché.
- Initialism of aircraft apprentice.
- Initialism of aircraft artificer.
- (aviation) Initialism of absolute altitude. [(aviation) The vertical distance between the airplane and the surface below.]
- (military) Initialism of anti-aircraft. [(military) Anti-aircraft artillery.]
- (military) Initialism of avenue of approach.
- (military) Initialism of assembly area.
- Initialism of airman apprentice.
- Initialism of absolute alcohol. [(chemistry) Reasonably pure ethyl alcohol that contains at most 1% of water]
- (psychology) Initialism of achievement age. [(psychology) The level of an individual's educational development, as measured by a standardized test, expressed in terms of the chronological age of a normal person with the same degree of educational attainment.]
- Initialism of acting appointment.
- Initialism of adoption agency.
- Initialism of armament artificer.
- Initialism of athletic association.
- Initialism of author's alteration.
- Initialism of aviation annex.
- (optics) Initialism of angular aperture.
- (organic chemistry) Initialism of amino acid. [(organic chemistry) Any organic compound containing both an amino and a carboxylic acid functional group.]
- (organic chemistry) Initialism of aminoacyl. [(organic chemistry) Any of class of organic radicals, formed by the removal of a hydroxyl group from an amino acid.]
- (organic chemistry) Initialism of acetic acid. [(organic chemistry) A clear colourless organic acid, CH₃COOH, formed by the bacterial oxidation of ethanol through acetic fermentation; it is used as a solvent and has very many industrial applications; it is the major acidic component of vinegar.]
- (organic chemistry) Initialism of acrylic acid. [(organic chemistry) A colourless liquid unsaturated organic acid, CH₂=CHCOOH; used as a monomer in the production of acrylic resins; forms acrylate esters by combination with alcohols.]
- (organic chemistry, medicine) Initialism of amyloid A.
- (organic chemistry) Initialism of arachidonic acid. [(organic chemistry) A long-chain polyunsaturated fatty acid, having 20 carbon atoms and four double bonds, found in animal fats; it is essential for human nutrition, being a precursor to the production of prostaglandins.]
- (organic chemistry) Initialism of ascorbic acid. [(biochemistry) A white crystalline organic compound, C₆H₈O₆, found in citrus fruits and many vegetables; it is an antioxidant and an efficient scavenger of free radicals.]
- (organic chemistry) Initialism of asymmetric aminohydroxylation.
- (biochemistry) Initialism of acetaldehyde adduct.
- (biochemistry) Initialism of adrenal androgen.
- (biochemistry, medicine) Initialism of antiandrogen. [(biochemistry, pharmacology) Any substance that inhibits the release or the biological effects of an androgen.]
- (chemistry) Initialism of antioxidant activity.
- (chemistry) Initialism of atomic absorption.
- (chemistry, engineering) Initialism of activated alumina.
- (immunology) Initialism of anti-antibody.
- (anatomy) Initialism of ascending aorta.
- (anatomy) Initialism of abdominal aorta.
- (anatomy) Initialism of aortic arch. [(anatomy) The curving portion of the aorta that bends between the ascending aorta and the descending aorta, from which the brachiocephalic artery, left carotid artery, and left subclavian artery arise.]
- (pathology) Initialism of acute appendicitis.
- (pathology) Initialism of allergic asthma.
- (pathology) Initialism of alopecia areata. [(medicine, dermatology) A form of alopecia in which hair is lost from various areas of the body.]
- (pathology) Initialism of anaplastic astrocytoma.
- (medicine) Initialism of anastomotic aneurysm.
- (pathology) Initialism of aortic aneurysm.
- (pathology) Initialism of aplastic anemia. [(pathology, hematology) A rare disease in which the bone marrow and the hematopoietic stem cells that reside there are damaged, causing pancytopenia.]
- (medicine) Initialism of arterial aneurysm.
- (medicine) Initialism of arytenoid adduction.
- (healthcare) Initialism of anesthesiologist assistant.
- (computer graphics) Initialism of antialiasing. [(computer graphics) any technique that reduces the appearance of jagged edges in digital images caused by high-contrast borders between pixels.]
- Initialism of African-American. [A black American.]
- Initialism of Asian-African.
- Initialism of Asian-American.
- (chiefly US, politics) Initialism of administrative assistant.
- Initialism of associate administrator.
- Initialism of assistant adjutant.
- Initialism of academic adviser.
- (education) Initialism of Associate in Arts or Associate of Arts.
- Initialism of appropriate authority.
- (British, law) Initialism of appropriate adult. [(UK, law) An adult, such as a parent, guardian, or social worker, whose role is to safeguard the interests of young people detained by the police, and who must be present at such interviews.]
- (finance) Initialism of account aggregator.
- (insurance) Initialism of appointed actuary.
- Initialism of approximate absolute.
- (statistics) Initialism of arithmetic average. [(statistics) The arithmetic mean.]
- (politics) Initialism of Association Agreement: a treaty between the European Union, its member states and a non-EU country that creates a framework for cooperation between them.
- (finance) Initialism of against actual.
- (Hong Kong) Initialism of agent assistant; an assistant of a real estate agent.
- (UK, pensions) Initialism of annual allowance.
- Initialism of Alcoholics Anonymous: a self-supporting organization of alcoholic people. [A self-supporting organization of alcoholic people, which proves mutual support to obtain and maintain sobriety.]
- Initialism of Academy Awards: a recognition of excellence in cinematic achievements, given annually by the Academy of Motion Picture Arts and Sciences. [The ceremony at which Academy Award winners are announced and receive their prizes.]
- Initialism of Addicts Anonymous.
- Initialism of Al Ain. [A city in the United Arab Emirates.]
- (aviation) Initialism of American Airlines: a major American airline headquartered in Fort Worth, Texas. [(poker slang) A pair of aces as a starting hand in Texas hold 'em.]
- (aviation) Initialism of Aerolíneas Argentinas.
- (aviation) Initialism of Ansett Australia or Ansett Airways.
- Initialism of Air Almanac, a publication.
- Initialism of American Anthropologist: the flagship journal of the American Anthropological Association, founded in 1888.
- Initialism of Acta Astronautica: a scientific journal founded in 1955, covering fields related to the peaceful scientific exploration of space.
- Initialism of Aluminum America, a corporation.
- Initialism of The Aluminum Association: a trade association for the aluminum production, fabrication and recycling industries.
- (US, historical, baseball) Initialism of American Association: an American minor league baseball league from 1902 to 1962 and 1969 to 1997.
- (UK, automotive) Initialism of The Automobile Association: a British motoring association founded in 1905.
- Initialism of Alzheimer's Association: an American volunteer health organization focusing on care, support and research for Alzheimer's disease.
- (US, historical) Initialism of Amalgamated Association of Iron and Steel Workers.
- (US, rail transport) Initialism of Ann Arbor Railroad.
- Initialism of Arlington Annex.
- Initialism of Army Act.
- (dated, Russia) Initialism of aviatsionnaya Armiya.
- (physics) Initialism of Antiproton Accumulator: an infrastructure connected to the Proton–Antiproton Collider at CERN.
- (occult) Alternative form of A∴A∴. [(occult) A Thelemic spiritual organization founded in 1907 by British occultists Aleister Crowley and George Cecil Jones.]
- Initialism of acetic acid. [(organic chemistry) A clear colourless organic acid, CH₃COOH, formed by the bacterial oxidation of ethanol through acetic fermentation; it is used as a solvent and has very many industrial applications; it is the major acidic component of vinegar.]
- Initialism of acting age.
- (medicine) Initialism of alveolar-arterial.
- Initialism of aminoacetone. [(chemistry) 1-amino-2-propanone, a secondary amino ketone]
- Initialism of amino acid. [(organic chemistry) Any organic compound containing both an amino and a carboxylic acid functional group.]
- Initialism of arachidonic acid. [(organic chemistry) A long-chain polyunsaturated fatty acid, having 20 carbon atoms and four double bonds, found in animal fats; it is essential for human nutrition, being a precursor to the production of prostaglandins.]
- Initialism of armature accelerator.
- Initialism of ascending aorta.
- Initialism of atomic absorption.
- Initialism of average audience.
- Abbreviation of adjectives.
- Abbreviation of arteries.
verb
- (computer graphics, transitive) To antialias.
adjective
- (military, aviation) Initialism of anti-aircraft or anti-air. [(military) Intended to attack aircraft.]
- (military, aviation) Initialism of air-to-air. [(aviation, of an act or action) With the participants being two or more aircraft in flight.]
- (anatomy, medicine) Initialism of atlantoaxial. [(anatomy) Of or pertaining to the articulation of the atlas with the axis.]
- (anatomy, medicine) Initialism of arterioarterial. [(medicine) Relating to, or communicating between two arteries.]
- (linguistics) Initialism of Afro-Asiatic.
- (linguistics) Initialism of Austroasiatic. [Of the Austroasiatic languages, a major language family spoken in parts of Southeast Asia, India and the Nicobar Islands.]
- Initialism of arctic-alpine.
- Initialism of always afloat.
- Abbreviation of ana (“of each, equal parts”).
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Examples of "aa" in Sentences
- Nobody showcases a word with an "aa" like Schlemihl Lefty.
- nenu ralchina chemata chukkala avirera/ aa akasaniko neelibottuni diddindee….
- The "aa" means that you hold the vowel sound for two beats as opposed to one.
- Well, in Norwegian aa - å, and is sorted last, while in English aa are just double a and comes before ab.
- We'll post the attributes of an invalid user with screen name aa/noyes and email address anoyes@example, com.
- The three companies of the 16th Battalion camped in aa triangular formation with battalion headquarters located in the center and approximately 10 minutes 'walk from each company.
- Then shall we be worthy of bearing the same name aa those heroes who planted their victorious standards on the banks of the river Jordan, with the same hands with which they guided tiie plough aod, the shuttle.
- To get a sense of language patterns of the era, Dr. Smithline studied the 80,000 letter-characters contained in Jefferson's State of the Union addresses, and counted the frequency of occurrences of "aa," "ab," "ac," through "zz."
- Worse, with more than two copies of some genes, each as likely as the next to have SNPs, some of those no doubt resulting in aa substitutions, a few of which may present alternative binding functionality in configurative operation, any or all modifiable post-translation, each coordinated with potentially operative expression suites with a number of other genes with other forms and functions, it doesn't look much like we'll ever be able to pin all THAT down either.
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