| CAA | carotid audiofrequency analysis; cerebral amyloid angiopathy; circulating anodic antigen; Clean Air ... | 
|---|---|
| CAAX [box] | protein segment in which C is cysteine, A is usually but not always an aliphatic amino acid, and X i... | 
| EAAC | excitatory amino acid carrier | 
| Fd | the amino-terminal portion of the heavy chain of an immunoglobulin molecule; ferredoxin | 
| GABOA | gamma-amino-beta-hydroxybutyric acid |