aa

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AA

abbr.
1. Bible Acts of the Apostles
2. Alcoholics Anonymous
3. antiaircraft
4. Associate in Arts

a·a

or a'a  (ä′ä)
n.
Lava having a rough surface.

[Hawaiian 'a'ā, to burn, aa.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

aa

(ˈɑːɑː)
n
(Geological Science) a volcanic rock consisting of angular blocks of lava with a very rough surface
[Hawaiian]

aa

abbreviation for
ana1

AA

abbreviation for
1. (Brewing) Alcoholics Anonymous
2. (Military) anti-aircraft
3. (Architecture) Architectural Association
4. (Automotive Engineering) (in Britain) Automobile Association
5. (Marketing) (in Britain) Advertising Association
symbol for
(Film) (in Britain, formerly) a film that may not be shown publicly to a child under fourteen
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

a•a

or a'a

(ˈɑ ɑ)

n.
basaltic lava having a rough surface.
[1855–60; < Hawaiian ‘a‘ā]

a̅a̅

or āa,


Symbol.
[< Greek aná, with superscript bar representing the nasal consonant]

AA

1. administrative assistant.
2. Alcoholics Anonymous.
3. antiaircraft.
4. Also, aa author's alteration.

A.A.

Associate of Arts.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

a·a

(ä′ä)
A type of lava having a rough, jagged surface. It is relatively slow moving in its molten state, advancing in the form of massive blocks. See Note at pahoehoe.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.AA - a dry form of lava resembling clinkersaa - a dry form of lava resembling clinkers
lava - rock that in its molten form (as magma) issues from volcanos; lava is what magma is called when it reaches the surface
2.AA - an international organization that provides a support group for persons trying to overcome alcoholismAA - an international organization that provides a support group for persons trying to overcome alcoholism
NGO, nongovernmental organization - an organization that is not part of the local or state or federal government
3.AA - an associate degree in artsAA - an associate degree in arts    
associate degree, associate - a degree granted by a two-year college on successful completion of the undergraduates course of studies
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations
aa-laava
IT
apalhraun

AA

N ABBR
1. =Alcoholics AnonymousA.A.
2. (Brit) =Automobile AssociationRACE m
3. (US) (Univ) =Associate in Arts
4. (Mil) =anti-aircraft
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

AA

[ˌeɪˈeɪ] n abbr
(British) (=Automobile Association) → ACF m
(US) (=Associate in Arts, Associate of Arts) diplôme universitaire
(=Alcoholics Anonymous) → AA
(=anti-aircraft) → AA
Collins English/French Electronic Resource. © HarperCollins Publishers 2005

AA

(dated Brit Film) für Jugendliche ab 14 freigegebener Film
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

AA

[eɪˈeɪ] n abbr
a. (Brit) =Automobile AssociationA.C.I. m =Automobile Club d'Italia
b. =Alcoholics AnonymousA.A. f =Anonima Alcolisti
c. (Am) =Associate in/of Artslaurea in lettere
d. (Mil) = anti-aircraft
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995

AA

V. Alcoholics Anonymous.
English-Spanish/Spanish-English Medical Dictionary Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
References in periodicals archive ?
The coroner said cause of death was given as Addisonian crisis caused by autoimmune adrenalitis, contributed to by gastroenteritis.
In these cases, the HPA axis issue might mainly be autoimmune adrenalitis. And, that condition is simply a mild version of what causes 70% of true Addison's disease.
The most common cause of primary AI in children is congenital adrenal hyperplasia (CAH) which accounts for 70% of pediatric patients with primary AI, whereas autoimmune adrenalitis (Addison's disease) accounts for up to 15% of cases [4].