| AAM | acute aseptic meningitis; American Academy of Microbiology; amino acid mixture; African American Mal... |
|---|---|
| AAO | American Academy of Osteopathy; American Academy of Ophthalmology; American Academy of Optometry; Am... |
| aa seq | amino acid sequence |
| AIR | amino-imidazole ribonucleotide; average impairment rating |
| AMPA | alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionate; American Medical Publishers Association |