Lexic.us

Definition of Aa

1. Noun. A dry form of lava resembling clinkers.

2. Noun. An international organization that provides a support group for persons trying to overcome alcoholism.

3. Noun. An associate degree in arts.

Definition of Aa

1. Initialism. (British) w:The Automobile Association The Automobile Association ¹

2. Initialism. Alcoholics Anonymous ¹

3. Initialism. American Airlines ¹

4. Initialism. Astrum Argenteum (also A.A. or A.'.A.'.), Esoteric Magickal order or Silver star, a magickal order. ¹

5. Initialism. Anti-aircraft ¹

6. Initialism. Alzheimer's Association ¹

7. Initialism. Armed Forces in the Americas (USPS abbreviation code) ¹

8. Initialism. African American ¹

9. Initialism. (India) w:Airports Authority of India Airports Authority of India ¹

10. Initialism. affirmative action ¹

11. Initialism. (chemistry) amino acid ¹

12. Initialism. (military) assembly area ¹

13. Initialism. (military) avenue of approach ¹

14. Initialism. (poker) A starting hand in Texas hold 'em comprised of two aces ¹

15. Initialism. achievement age ¹

16. Initialism. acting appointment ¹

17. Initialism. approximate absolute ¹

18. Initialism. author's alteration ¹

19. Initialism. athletic association ¹

20. Noun. (geology) 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 (term pahoehoe). ¹

21. Initialism. always afloat ¹

22. Initialism. ana ¹

¹ Source: wiktionary.com

Definition of Aa

1. rough, cindery lava [n -S]

Medical Definition of Aa

1. A class of organic molecules that containing an amino group and can combine in linear arrays to form proteins in living organisms. There are twenty common amino acids: alanine, arginine, aspargine, aspartic acid, cysteine, glutamic acid, glutamine, glycine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, proline, serine, threonine, tryptophan, tyrosine, and valine. They are key components in all living things from which proteins are synthesised by formation of peptide bonds during ribosomal translation of messenger RNA. All the amino acids have the L configuration, except glycine which is not optically active. Other amino acids occurring in proteins, such as hydroxyproline in collagen, are formed by post translational enzymatic modification of amino acid residues in polypeptide chains. There are also several important amino acids, such as the neurotransmitter y aminobutyric acid, that have no relation to proteins. Amino acids can now be produced by biotechnology in bulk using fermentation and biotransformation. Acronym: AA (13 Nov 1997)

Lexicographical Neighbors of Aa

A1 A10 A2 A20 gate A2S A2Ss A3 A4 A440 A5

A6 A7 A8 A9 AA AAA AAAA AAAAI AAAAs AAAS

AAC AACAP AACD AACS AAD AADC AAF AAFA AAFP

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