| Acronym | Definition |
|---|
| ADAR | Adenosine Deaminase, RNA-Specific |
| ADAR | Air Defense RADAR |
| ADAR | Air Defense Artillery Regiment (US Army) |
| ADAR | Air Defense Area |
| ADAR | Ada Decimal Arithmetic and Representations |
| ADAR | Audit Development and Reports |
| ADAR | Advanced Design Array Radar |
| ADAR | Air Deployed Active Receiver |
| ADAR | Association pour le Développement des Activités Rurales |
| ADAR | Aegis Data Analysis and Reduction |
| ADAR | Air Deployable Acoustic Receiver |
| ADAR | Association Diabète Actions Rencontres |
| ADAR | Adaptive Diagnosis Algorithm and Repair |
| ADAR | Air Defense Area Operations |