| Abbreviation | Definition |
|---|---|
| ADAA | Animal Drug Availability Act |
| ADCF | African Dwarf Clawed Frog |
| ADDA | Asociacion Defensa Derechos Animal |
| ADDD | Animal Defined Daily Dosages |
| ADDL | Animal Disease Diagnostic Lab |
| ADDL | Avian Disease Diagnostic Laboratory |
| ADED | Animal Determinants of Emerging Disease |
| ADLA | Animal Defense League of Arizona |
| ADOPT | Animals Depend on People Too |
| ADOPT | Animals Deserving of Proper Treatment |
| ADSM | Animal Disease Spread Model |
| ADTC | Animal Dental Training Center |
| ADW | Animal Diversity Web |
| AEAR | Animal Education And Rescue |
| AEPA | Animal Enterprise Protection Act |
| AES | Animal Emergency Services |
| AESC | Animal Emergency Specialty Center |
| AETA | Animal Enterprise Terrorism Act |
| AEU | Animal Experimental Unit |
| AEUC | Animal Emergency and Urgent Care |