| AIBA | aminoisobutyric acid |
|---|---|
| AIBS | American Institute of Biological Sciences |
| AIBS | International Association for Biological Standards |
| AIC | Akaike's information criterion [a goodness-of-fit measure]; aminoimidazole carboxamide; Association des Infirmieres Canadiennes |
| AICA | Anterior Inferior Cerebellar Artery; Hemifacial Spasm |
| AICA | anterior inferior cerebellar artery; anterior inferior communicating artery |
| AICAR | Amino-Imidazole Carbox-Amide Ribotide |
| AICAR | aminoimidazole carboxamide ribonucleotide |
| AICD | Automatic Implantable Cardioverter Defibrillator |
| AICD | automatic implantable cardioverter defibrillator |