| Term | Definition | Contributor | Modified |
|---|---|---|---|
| Rome--Hist.--Republic, B.C. 510-265 | No definition provided | Christopher Rauch | 2023.12.01 |
| Rome--Hist.--Republic, B.C. 510-30 | No definition provided | Christopher Rauch | 2023.12.01 |
| Romeite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Romerite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Rondorfite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Rong language | No definition provided | Christopher Rauch | 2023.12.01 |
| Ron i e--De script ion, geograp hy) | No definition provided | Christopher Rauch | 2023.12.01 |
| Ronneburgite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Rontgenite (Ce) | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Rood-lofts | No definition provided | Christopher Rauch | 2023.12.01 |
| Roof crestings | No definition provided | Christopher Rauch | 2023.12.01 |
| Roofing | No definition provided | Christopher Rauch | 2023.12.01 |
| Roofing paint | No definition provided | Christopher Rauch | 2023.12.01 |
| Roofing, Slate | No definition provided | Christopher Rauch | 2023.12.01 |
| Roofing, Tin | No definition provided | Christopher Rauch | 2023.12.01 |
| Roofs | No definition provided | Christopher Rauch | 2023.12.01 |
| Roofs--Tables, calculations, etc | No definition provided | Christopher Rauch | 2023.12.01 |
| Roof-trusses | No definition provided | Christopher Rauch | 2023.12.01 |
| Rook lending | No definition provided | Christopher Rauch | 2023.12.01 |
| Rook reviews | No definition provided | Christopher Rauch | 2023.12.01 |