| Abbreviation | Definition |
|---|---|
| AARS | American Animal Rescue Society |
| AASD | Area Animal Science Days |
| AAT | African animal trypanosomosis |
| AAT | Animal Assisted Therapy |
| AATO | Animals Against The Odds |
| AATT | Animal Assisted Therapy Team |
| AAVA | Animal Aid for Vermilion Area |
| AAVA | Animal Aid Vermilion Area |
| AAWS | Avoyelles Animal Welfare Society |
| ABAA | Association for Animal Welfare |
| ABCDEFGHIJKLMNOPQRSTUVWXYZ | Animals be crazy dogs eating fish gut. Hamilton in jog...km like monkeys noon O P queen Robert snake |
| ABDG | Animal Behavior Discussion Group |
| ABE | American Bald Eagle |
| ABEC | Animal Behavior Ecology and Conservation |
| ABPR | Animal By-Products Regulations |
| ABRG | Animal Behavior Research Group |
| ABRG | Animal Behaviour Research Group |
| ABRI | Animal Behavior Resources Institute |
| ABST | Animal Behavior Science and Technology |
| ABUSE | Abuse; abusive; when a human is harming an animal or fellow human for unspecified reasons. |