aa
pron1
Northumbria, Personal I.
AA
nounalso spelled AAEtymology Abbreviations.
72 senses
- 1A member of Alcoholics Anonymous.
- 2An AA battery (energy-storage device).
- 3Initialism of affirmative action.
- 4Initialism of air armament.
- 5Initialism of air attaché.
- 6Initialism of aircraft apprentice.
- 7Initialism of aircraft artificer.
- 8Initialism of absolute altitude.
- 9Initialism of anti-aircraft.
- 10Initialism of avenue of approach.
- 11Initialism of assembly area.
- 12Initialism of airman apprentice.
- 13Initialism of absolute alcohol.
- 14Initialism of achievement age.
- 15Initialism of acting appointment.
- 16Initialism of adoption agency.
- 17Initialism of armament artificer.
- 18Initialism of athletic association.
- 19Initialism of author's alteration.
- 20Initialism of aviation annex.
- 21Initialism of angular aperture.
- 22Initialism of amino acid.
- 23Initialism of aminoacyl.
- 24Initialism of acetic acid.
- 25Initialism of acrylic acid.
- 26Initialism of amyloid A.
- 27Initialism of arachidonic acid.
- 28Initialism of ascorbic acid.
- 29Initialism of asymmetric aminohydroxylation.
- 30Initialism of acetaldehyde adduct.
- 31Initialism of adrenal androgen.
- 32Initialism of antiandrogen.
- 33Initialism of antioxidant activity.
- 34Initialism of atomic absorption.
- 35Initialism of activated alumina.
- 36Initialism of anti-antibody.
- 37Initialism of ascending aorta.
- 38Initialism of abdominal aorta.
- 39Initialism of aortic arch.
- 40Initialism of acute appendicitis.
- 41Initialism of allergic asthma.
- 42Initialism of alopecia areata.
- 43Initialism of anaplastic astrocytoma.
- 44Initialism of anastomotic aneurysm.
- 45Initialism of aortic aneurysm.
- 46Initialism of aplastic anemia.
- 47Initialism of arterial aneurysm.
- 48Initialism of arytenoid adduction.
- 49Initialism of anesthesiologist assistant.
- 50Initialism of anesthesia assistant.
- 51Initialism of antialiasing.
- 52Initialism of African-American.
- 53Initialism of Asian-African.
- 54Initialism of Asian American.
- 55Initialism of administrative assistant.
- 56Initialism of associate administrator.
- 57Initialism of assistant adjutant.
- 58Initialism of academic adviser.
- 59Initialism of Associate in Arts or Associate of Arts.
- 60Initialism of appropriate authority.
- 61Initialism of appropriate adult.
- 62Initialism of account aggregator.
- 63Initialism of appointed actuary.
- 64Initialism of approximate absolute.
- 65Initialism of arithmetic average.
- 66Initialism of Association Agreement: a treaty between…
- 67Initialism of against actual.
- 68Initialism of approach anxiety.
- 69Initialism of agent assistant; an assistant of a real…
- 70Initialism of annual allowance.
- 71Abbreviation of all-around.
- 72Initialism of average audience.
1
A member of Alcoholics Anonymous.
- In a letter to Cohen, written between 1956 and 1961, he reported hearing gossip about his LSD use in AA circles. He reminded Cohen about "the desirability" of omitting his name "when discussing LSD with AAs". Cohen reassured Wilson that his LSD trials did not include other active AA members.2012 August 23, Amelia Hill, “LSD could help alcoholics stop drinking, AA founder believed”, in The Guardian:
2
An AA battery (energy-storage device).
- Whether your camera takes AAs or a unique, proprietary battery, you should always have a spare. […] You will not be able to walk into a local supermarket and buy a new one as you can with AAs.2005, Rob Sheppard, Digital Photography 1, 2, 3: Taking and Printing Great Pictures, New York: Lark Books, →ISBN, page 52:
- It’s also tough to keep on top of charging all the batteries needed. The remote takes standard AAs, but the drone has a huge lithium battery that charges with a special wall unit.2014 January 1, Kit Eaton, “Civilian Photography, Now Rising to New Level”, in The New York Times:
3
Abbreviation, Initialism Initialism of affirmative action.
- Some of the rules guiding these nominations are affirmative action (AA)¹ policies intended to increase the influence of and to encourage nomination of women and minorities. […] A review of the extant literature on AA and its effect on decision-makers produces competing hypotheses about the potential impact on female candidates seeking party nomination.2016, Angela L. Bos, “The unintended effects of political party affirmative action policies on female candidates’ nomination chances”, in Zoe M. Oxley, editor, Gender and Political Psychology, Routledge, →ISBN, pages 73–74:
4
Abbreviation, Initialism Initialism of air armament.
5
Abbreviation, Initialism Initialism of air attaché.
6
Abbreviation, Initialism Initialism of aircraft apprentice.
7
Abbreviation, Initialism Initialism of aircraft artificer.
8
Aeronautics, Aerospace, Aviation, Business, Engineering, Natural sciences, Physical sciences Abbreviation, Initialism Initialism of absolute altitude.
9
Government, Military, Politics, War Abbreviation, Initialism Initialism of anti-aircraft.
- They're setting up an AA battery. That thing'll tear the Dawn apart... We'll wait for you to take the shot.2007 September 25, Bungie, Halo 3, Microsoft Game Studios, Xbox 360, level/area: The Ark:
10
Government, Military, Politics, War Abbreviation, Initialism Initialism of avenue of approach.
11
Government, Military, Politics, War Abbreviation, Initialism Initialism of assembly area.
12
Abbreviation, Initialism Initialism of airman apprentice.
13
Abbreviation, Initialism Initialism of absolute alcohol.
14
Human sciences, Psychology, Sciences Abbreviation, Initialism Initialism of achievement age.
15
Abbreviation, Initialism Initialism of acting appointment.
16
Abbreviation, Initialism Initialism of adoption agency.
17
Abbreviation, Initialism Initialism of armament artificer.
18
Abbreviation, Initialism Initialism of athletic association.
19
Abbreviation, Initialism Initialism of author's alteration.
20
Abbreviation, Initialism Initialism of aviation annex.
21
Engineering, Natural sciences, Optics, Physical sciences, Physics Abbreviation, Initialism Initialism of angular aperture.
22
Chemistry, Natural sciences, Organic chemistry, Physical sciences Abbreviation, Initialism Initialism of amino acid.
- All proteinogenic amino acids (AAs) are claimed to be levorotatory (L-configured). Nevertheless, dextrorotatory AAs (D-configured) are also found in nature (Gao et al., 2015; Ollivaux et al., 2014), for example, in the organic material of extraterrestrial comets (Cronin and Pizzarello, 1983), or, formed by slow racemization, in all dead biological material.2011, Alexander Cartus, “D-Amino Acids and Cross-Linked Amino Acids in Food”, in Dieter Schrenk, Alexander Cartus, editors, Chemical Contaminants and Residues in Food, Woodhead Publishing, →ISBN, page 251:
23
Chemistry, Natural sciences, Organic chemistry, Physical sciences Abbreviation, Initialism Initialism of aminoacyl.
24
Chemistry, Natural sciences, Organic chemistry, Physical sciences Abbreviation, Initialism Initialism of acetic acid.
25
Chemistry, Natural sciences, Organic chemistry, Physical sciences Abbreviation, Initialism Initialism of acrylic acid.
- For copolymers of ethylene, the other comonomer can be an alkene such as propene, butene, hexene or octene, or a compound having a polar functional group such as vinyl acetate (VA), acrylic acid (AA), ethyl acetate (EA), methyl acrylate (MA) or vinyl alcohol (VOH).2006, Gordon L. Robertson, “Structure and Related Properties of Plastic Polymers”, in Food Packaging: Principles and Practice, 2nd edition, CRC Press, →ISBN, page 25:
26
Chemistry, Medicine, Natural sciences, Organic chemistry, Physical sciences, Sciences Abbreviation, Initialism Initialism of amyloid A.
27
Chemistry, Natural sciences, Organic chemistry, Physical sciences Abbreviation, Initialism Initialism of arachidonic acid.
- Arachidonic acid (AA) is present at unusually high levels in the phospholipids of inflammatory cells. […] IgG-mediated phagocytosis results in the preferential release of AA over other fatty acids²³ via activation of cPLA₂ and iPLA₂.2005, Michelle R. Lennartz, “Phospholipases and Phagocytosis”, in Carlos Rosales, editor, Molecular Mechanisms of Phagocytosis, Landes Bioscience / Eurekah.com; Springer Science+Business Media, Inc., →ISBN, page 106:
28
Chemistry, Natural sciences, Organic chemistry, Physical sciences Abbreviation, Initialism Initialism of ascorbic acid.
29
Chemistry, Natural sciences, Organic chemistry, Physical sciences Abbreviation, Initialism Initialism of asymmetric aminohydroxylation.
30
Biochemistry, Biology, Chemistry, Microbiology, Natural sciences, Physical sciences Abbreviation, Initialism Initialism of acetaldehyde adduct.
- The two tests presently in this category are the blood tests carbohydrate deficient transferrin (CDT) and hemoglobin or whole blood acetaldehyde adducts (AA). […] Measurement of AA in the blood has also generated a great deal of recent research interest.1995, Raymond F. Anton, Raye Z. Litten, John P. Allen, “Biological Assessment of Alcohol Consumption”, in John P. Allen, Megan Columbus, editors, Assessing Alcohol Problems: A Guide for Clinicians and Researchers, Washington, D.C.: U.S. Department of Health and Human Services, →ISBN, page 36:
31
Biochemistry, Biology, Chemistry, Microbiology, Natural sciences, Physical sciences Abbreviation, Initialism Initialism of adrenal androgen.
- Although the ovaries are the main source of androgen excess in PCOS, excess adrenal androgen (AA) levels (e.g., dehydroepiandrosterone [DHEA] and adrenal-secreted androsteredione [A4]) and adrenocortical dysfunction have also been observed in many patients with PCOS (2–6). Proof of the role of AA excess in the development of PCOS is circumstantial at best.2007, Bulent O. Yildiz, Enrico Carmina, Ricardo Azziz, “Hypothalamic–Pituitary–Adrenal Dysfunction in the Polycystic Ovary Syndrome”, in Ricardo Azziz, John E. Nestler, Didier Dewailly, editors, Androgen Excess Disorders in Women: Polycystic Ovary Syndrome and Other Disorders, 2nd edition, Totowa, NJ: Humana Press, →ISBN, page 213:
32
Biochemistry, Biology, Chemistry, Medicine, Microbiology, Natural sciences, Physical sciences, Sciences Abbreviation, Initialism Initialism of antiandrogen.
33
Chemistry, Natural sciences, Physical sciences Abbreviation, Initialism Initialism of antioxidant activity.
- Antioxidant activity (AA) is one of the main and most acclaimed properties of edible oil, and the antioxidant properties of EVOO have been extensively highlighted (Tuck and Hayball, 2002; Vissers et al., 2004). AA is usually estimated by monitoring the scavenging of a free radical by antioxidants that lead to either the inhibition of a chemical reaction or the changes of reaction rate constants in an ongoing radical reaction.2017, Xiuzhu Yu, “Spectroscopic Methods for Analysis of Edible Oils”, in Adriana S. Franca, Leo Nollet, editors, Spectroscopic Methods in Food Analysis, CRC Press, Taylor & Francis Group, →ISBN, page 528:
34
Chemistry, Natural sciences, Physical sciences Abbreviation, Initialism Initialism of atomic absorption.
35
Chemistry, Engineering, Natural sciences, Physical sciences Abbreviation, Initialism Initialism of activated alumina.
- Activated alumina (AA, or γ-Al₂O₃) is an amorphous aluminium oxide prepared by dehydrating Al(OH)₃ at high temperature, […] Arsenic removal on AA is strongly pH-dependent, and is optimal between pH 5.5 and 6.0, which often requires acidification, and subsequent neutralisation to prevent corrosion.2009, Peter Ravenscroft, Hugh Brammer, Keith Richards, “Removing Arsenic from Drinking Water”, in Arsenic Pollution: A Global Synthesis, John Wiley & Sons, →ISBN, page 272:
36
Immunology, Medicine, Sciences Abbreviation, Initialism Initialism of anti-antibody.
- The existence of many autoimmune concurrent diseases supports that AA is an autoimmune disease. […] The incidence of type I diabetes in AA is intriguing; it is decreased in AA patients and increased in their relatives.2012, Yoshihiro Kuwano, Manabu Fujimoto, “Alopecia areata and chemokine”, in Victor R. Preedy, editor, Handbook of Hair in Health and Disease, Wageningen Academic Publishers, →ISBN, page 203:
44
Medicine, Sciences Abbreviation, Initialism Initialism of anastomotic aneurysm.
- An anastomotic aneurysm (AA) is an aneurysm that occurs at an anastomotic interface between a graft and an artery. […] Recently, it has been recognized that an increasing number of AAs may in fact be true aneurysms occurring at the junction of a prosthetic graft and an artery.2004, Alexander D. Shepard, Gary M. Jacobson, “Anastomotic Aneurysms”, in Jonathan B. Towne, Larry H. Hollier, editors, Complications in Vascular Surgery, 2nd edition, New York: Marcel Dekker, →ISBN, page 139:
- This issue of Circulation has an interesting contribution from Reed et al,¹ who advance the point of view that aortic aneurysms (AAs) are “caused” by atherosclerosis. […] The authors propose two arguments in support of a “causal” relation between atherosclerotic risk factors and the development of AAs.1992 January 1, M. David Tilson, “Aortic Aneurysms and Atherosclerosis”, in Circulation, volume 85, number 1, →DOI, page 378:
- Aplastic anemia (AA) secondary to radiotherapy presents a difficult situation in the treatment of both the malignant tumor and AA itself. We aimed to evaluate the efficacy of avatrombopag (AVA), a thrombopoietin receptor agonist, in patients with AA secondary to chemoradiotherapy.2023 January, Yarong Chi, Qinglin Hu, Chen Yang, Miao Chen, Bing Han, “Avatrombopag is effective in patients with chemoradiotherapy-induced aplastic anemia: a single-center, retrospective study”, in Experimental Hematology, volume 117, →DOI, page 62:
47
Medicine, Sciences Abbreviation, Initialism Initialism of arterial aneurysm.
- Arterial aneurysms (AA) are local out-pouching of a blood vessel wall. […] According to the statistics, 90% of all AA are located in the anterior segments of the circle of Willis and only 10% in the posterior segments (Dandy 1944; Zlotnik 1967).2009, Valery N. Kornienko, Igor Nicolaevich Pronin, “Cerebrovascular Diseases and Malformations of the Brain”, in Diagnostic Neuroradiology, Springer, →ISBN, page 199:
48
Medicine, Sciences Abbreviation, Initialism Initialism of arytenoid adduction.
- If the paralysis is unilateral, arytenoid adduction (AA) procedures can be done to medialize the complex and arguably improve the results of an implant medialization.⁷⁹ An AA arytenopexy can reconfigure the ipsilateral arytenoid for improved glottic closure, if needed.^(1,80)2017, Mausumi N Syamal, Michael S Benninger, “Vocal Fold Immobility”, in KK Handa, editor, Textbook of Voice and Laryngology, New Delhi: Jaypee Brothers Medical Publishers, →ISBN, page 75:
49
Government, Healthcare Abbreviation, Initialism Initialism of anesthesiologist assistant.
50
Government, Healthcare Abbreviation, Initialism Initialism of anesthesia assistant.
51
Computer graphics, Computing, Engineering, Mathematics, Natural sciences, Physical sciences, Sciences Abbreviation, Initialism Initialism of antialiasing.
52
Abbreviation, Initialism Initialism of African-American.
- For example, among AAs “spell” refers to a trance state in which individuals can communicate with deceased relatives and which is associated with brief periods of personality change (American Psychiatric Association 1994).2015, Davor Zink, Bern Lee, Daniel Allen, “Structured and Semistructured Clinical Interviews Available for Use Among African American Clients: Cultural Considerations in the Diagnostic Interview Process”, in Lorraine T. Benuto, Brian D. Leany, editors, Guide to Psychological Assessment with African Americans, Springer, →ISBN, page 19:
53
Abbreviation, Initialism Initialism of Asian-African.
54
Abbreviation, Initialism Initialism of Asian American.
- Asian Americans (AAs) constitute the fastest growing group in the United States, yet health promotion in this population is severely hampered by its invisibility in the U.S. population. […] This chapter will address each of the four factors that contribute to the lack of knowledge and health information about AAs.2007, Marjorie Kagawa-Singer, Jung Hee Han, “Asian American Health and Disease: An Overview”, in Michael V. Kline, Robert M. Huff, editors, Health Promotion in Multicultural Populations: A Handbook for Practitioners and Students, 2nd edition, SAGE Publications, page 414:
55
Government, Politics US, Abbreviation, Initialism Initialism of administrative assistant.
- But Wilson's loyal administrative assistant, Charlie Simpson, felt that he couldn't put up with it anymore. […] “I have to learn how to be a congressman and you need to learn how to be an AA [administrative assistant],” Wilson had told Simpson. “And this is the first thing we have to do.” […] The experience left the AA believing that perhaps the two of them shared a special destiny.2003, George Crile, Charlie Wilson's War: The Extraordinary Story of How the Wildest Man in Congress and a Rogue CIA Agent Changed the History of Our Times, New York: Grove Press, →ISBN, page 186:
56
Abbreviation, Initialism Initialism of associate administrator.
- I've worked at NASA as a graduate student working as a summer intern, and as an AA. Those are two of the most valuable experiences in my life.2011, “S. Alan Stern”, in Rebecca Wright, Sandra Johnson, Steven J. Dick, editors, NASA at 50: Interviews with NASA's Senior Leadership, National Aeronautics and Space Administration, →ISBN, page 139:
57
Abbreviation, Initialism Initialism of assistant adjutant.
58
Abbreviation, Initialism Initialism of academic adviser.
- The AA said that given my background in English studies and applied linguistics, my introductory course in phonetics would be waved. Three of the four courses the AA prescribed included computer assisted instruction, which I eventually dropped due to overload, English language teaching methodology and psychology of second language learning.2013, Yeno M Matuka Pierre, Through the Eye of the Needle, Xlibris, →ISBN, page 121:
59
Education Abbreviation, Initialism Initialism of Associate in Arts or Associate of Arts.
- “I’m still figuring out my plans, but going back for another year is in my plans. I would be going back and getting my AA [degree], while playing another year of softball,” Enright said.2020 March 20, Colin Peters, “Coaches, athletes react to sports being put on pause”, in Daily Iowegian, archived from the original on 01 Apr 2020:
- He returned to community college and earned an A.A. while working as an E.M.T. and plans to become a paramedic or a nurse. He attributes much of this to his faith.2022 March 15, Ilana M. Horwitz, “I Followed the Lives of 3,290 Teenagers. This Is What I Learned About Religion and Education.”, in The New York Times:
60
Abbreviation, Initialism Initialism of appropriate authority.
- An AA, who was a trained social worker, also felt that the volunteer AAs should be shown greater respect by the police (GMS14). At the same time, there was some awareness that AAs were unpaid among the private police staff, as one commented that she tried to be particularly nice to the AAs because of their volunteer status (e.g. SNS7).2011, Layla Skinns, Police Custody: Governance, Legitimacy and Reform in the Criminal Justice Process, Routledge, →ISBN, page 61:
- The initiative will draw on some 200 existing volunteers under the Appropriate Adult (AA) scheme, run by the Movement for the Intellectually Disabled of Singapore (Minds), from Jan 30. […] "These AAs are trained by Minds, and we believe they will enable our investigation officers to better communicate with drug offenders with intellectual disabilities, autism spectrum disorder or mental health issues," he said.2017 January 18, Ng Huiwen, “Drug offenders with special needs to get support”, in The Straits Times:
- The RBI had in 2016 approved a new class of NBFCs to act as account aggregators (AA). These AAs will play the role of providing services based on the explicit consent of individual clients.2019 July 29, Neha Alawadhi, Karan Choudhury, “Account aggregator to make applying for loan less cumbersome for users”, in Business Standard:
- Appointed Actuaries (AAs) are entrusted with the responsibility of maintaining solvency position of the Company. […] However, the existing arrangements of AAs and Mentors not complying with these guidelines may continue till June 30.2016 March 22, “Insurer can't transact new biz sans Appointed Actuaries: Irdai”, in Business Standard:
64
Abbreviation, Initialism Initialism of approximate absolute.
65
Mathematics, Sciences, Statistics Abbreviation, Initialism Initialism of arithmetic average.
66
Government, Politics Abbreviation, Initialism 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.
- Following the AA's enactment in June 2004, some institutional reform took place with the aim of enhancing the competitiveness of Egyptian products. […] The AA reflected a long-term and a rather broadly defined consideration of economic and social development and the process of market transformation in Egypt.2013, Amr Adly, “External factors and state reform”, in State Reform and Development in the Middle East: Turkey and Egypt in the Post-Liberalization Era, Routledge, →ISBN, page 200:
- In addition, bilateral relations with the diverse countries of the South, which were “divided in their unity,” were also given a boost, as negotiations on new EU Association Agreements (AAs) got underway, as AAs were signed with all EMP countries except Syria by the early 2000’s.2018 November 14, James Moran, “What Future for the EU’s Southern Neighbourhood Policy?”, in The Cairo Review of Global Affairs:
68
Lifestyle, Seduction community, Sexuality Abbreviation, Initialism Initialism of approach anxiety.
69
Hong Kong, Abbreviation, Initialism Initialism of agent assistant; an assistant of a real estate agent.
70
UK, Abbreviation, Initialism Initialism of annual allowance.
71
Gymnastics, Hobbies, Lifestyle, Sports Abbreviation Abbreviation of all-around.
72
Broadcasting, Media Abbreviation, Initialism Initialism of average audience.
- Related terms
- AAS