| Term | Definition | Contributor | Modified |
|---|---|---|---|
| Pyramid inch | No definition provided | Christopher Rauch | 2023.12.01 |
| Pyramid metrology | No definition provided | Christopher Rauch | 2023.12.01 |
| Pyramids | No definition provided | Christopher Rauch | 2023.12.01 |
| Pyramids--Construction | No definition provided | Christopher Rauch | 2023.12.01 |
| Pyramids--Curiosa and miscellany | No definition provided | Christopher Rauch | 2023.12.01 |
| Pyrantimonite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Pyrargyrite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Pyrenomycetes | No definition provided | Christopher Rauch | 2023.12.01 |
| Pyrethrum | No definition provided | Christopher Rauch | 2023.12.01 |
| Pyrexia | No definition provided | Christopher Rauch | 2023.12.01 |
| Pyrheliometer | No definition provided | Christopher Rauch | 2023.12.01 |
| Pyrite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Pyrites | No definition provided | Christopher Rauch | 2023.12.01 |
| Pyro- and piezo-electricity | No definition provided | Christopher Rauch | 2023.12.01 |
| Pyroaurite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Pyrobelonite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Pyrochlore | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Pyrochroite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| pyroclastic | A descriptive term, usually for rock, which results from explosive magma ejection [Wikipedia] | Ryan McGranaghan | 2023.04.16 |
| Pyrocoproite | No definition provided | Ryan McGranaghan | 2023.04.16 |