| Term | Definition | Contributor | Modified |
|---|---|---|---|
| Rhinolophus | No definition provided | Christopher Rauch | 2023.12.01 |
| Rhinoscleroma | No definition provided | Christopher Rauch | 2023.12.01 |
| Rhipidoglossa | No definition provided | Christopher Rauch | 2023.12.01 |
| Rhizoids | No definition provided | Christopher Rauch | 2023.12.01 |
| Rhizopoda | No definition provided | Christopher Rauch | 2023.12.01 |
| Rhodanic acid | No definition provided | Christopher Rauch | 2023.12.01 |
| Rhodarsenide | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Rhode Island, Battle of, 1778 | No definition provided | Christopher Rauch | 2023.12.01 |
| Rhode Island independence day | No definition provided | Christopher Rauch | 2023.12.01 |
| Rhode Island reds | No definition provided | Christopher Rauch | 2023.12.01 |
| Rhodesite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Rhodes--Siege, 1522 | No definition provided | Christopher Rauch | 2023.12.01 |
| Rhodium | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Rhodizite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Rhodochrosite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Rhododendron | No definition provided | Christopher Rauch | 2023.12.01 |
| Rhodolite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Rhodonite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Rhodophyceae | No definition provided | Christopher Rauch | 2023.12.01 |
| Rhodostannite | No definition provided | Ryan McGranaghan | 2023.04.16 |