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noun
basaltic lava having a rough surface.
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Aa
is always a great word to know.
So is flibbertigibbet. Does it mean:
| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
| a chattering or flighty, light-headed person. |
Dictionary.com Unabridged
AA
Symbol.
1.
a proportional shoe width size, narrower than A and wider than AAA.
2.
the smallest proportional brassiere cup size.
3.
a quality rating for a corporate or municipal bond, lower than AAA and higher than A.
4.
Electricity. a battery size for 1.5 volt dry cells: diameter, 0.6 inches (1.4 cm); length, 2 inches (5 cm).
a̅a̅
Symbol.
(in prescriptions) ana2.
Also, āa
Origin:
< Greek aná, with superscript bar representing the nasal consonant
< Greek aná, with superscript bar representing the nasal consonant
A.A.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Based on the Random House Dictionary, © Random House, Inc. 2012.
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|
Link To aa
Collins
World English Dictionary
| a', aa or aw (ɔː) | |
| —determiner | |
| (Scot) variants of all | |
| aa, aa or aw | |
| —determiner | |
| aw, aa or aw | |
| —determiner | |
| aa2 | |
| —abbreviation for | |
| ana1 | |
| AA | |
| —abbreviation for | |
| 1. | Alcoholics Anonymous |
| 2. | anti-aircraft |
| 3. | Architectural Association |
| 4. | (in Britain) Automobile Association |
| 5. | (in Britain) Advertising Association |
| —symbol for | |
| 6. | (in Britain, formerly) a film that may not be shown publicly to a child under fourteen |
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Etymonline
Word Origin & History
A.A.
abbreviation of Alcoholics Anonymous, attested by 1941, Amer.Eng. The group name was the title of a book published in 1938 by the founder, Bill W.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary
AA abbr.
Alcoholics Anonymous
amino acid
aminoacyl
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
aa  (ä'ä) Pronunciation Key
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 with fissured and angular surfaces that ride on a viscous interior. The blocks range in size between the size of a football and the size of a house. See Note at pahoehoe. |
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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American Heritage
Abbreviations & Acronyms
aa
|
AA
|
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
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