| Term | Definition | Contributor | Modified |
|---|---|---|---|
| aquatic organism | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Aquatic plants | No definition provided | Christopher Rauch | 2023.12.01 |
| Aquatic sports | No definition provided | Christopher Rauch | 2023.12.01 |
| Aquatint | No definition provided | Christopher Rauch | 2023.12.01 |
| aqueduct | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Aqueducts | No definition provided | Christopher Rauch | 2023.12.01 |
| Aqueous humor | No definition provided | Christopher Rauch | 2023.12.01 |
| aquiclude | No definition provided | Ryan McGranaghan | 2023.04.16 |
| aquifer | No definition provided | Ryan McGranaghan | 2023.04.16 |
| aquifuge | No definition provided | Ryan McGranaghan | 2023.04.16 |
| aquitanian | No definition provided | Ryan McGranaghan | 2023.04.16 |
| aquitard | No definition provided | Ryan McGranaghan | 2023.04.16 |
| ar | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Arabesques | No definition provided | Christopher Rauch | 2023.12.01 |
| Arabian horse | No definition provided | Christopher Rauch | 2023.12.01 |
| Arabic architecture | No definition provided | Christopher Rauch | 2023.12.01 |
| Arabic art | No definition provided | Christopher Rauch | 2023.12.01 |
| Arabic astronomy | No definition provided | Christopher Rauch | 2023.12.01 |
| Arabic civilization | No definition provided | Christopher Rauch | 2023.12.01 |
| Arabic costume | No definition provided | Christopher Rauch | 2023.12.01 |