| Term | Definition | Contributor | Modified |
|---|---|---|---|
| Piemontite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Piemontite (Sr) | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Pierce fight, Central Falls, R.I., 1616 | No definition provided | Christopher Rauch | 2023.12.01 |
| Piergorite (Ce) | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Pierrotite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Piers | No definition provided | Christopher Rauch | 2023.12.01 |
| Piers (Bridge) | No definition provided | Christopher Rauch | 2023.12.01 |
| Piezo-electricity | No definition provided | Christopher Rauch | 2023.12.01 |
| piezometer | A devise used to measure groundwater pressure head at a point in the subsurface. | Ryan McGranaghan | 2023.04.16 |
| Pig | No definition provided | Christopher Rauch | 2023.12.01 |
| Pigeonite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Pigeon Roost massacre, 1812 | No definition provided | Christopher Rauch | 2023.12.01 |
| Pigeons | No definition provided | Christopher Rauch | 2023.12.01 |
| Pigeons--Bibl | No definition provided | Christopher Rauch | 2023.12.01 |
| Piggwacket fight, 1725 | No definition provided | Christopher Rauch | 2023.12.01 |
| Piggwacket Indians | No definition provided | Christopher Rauch | 2023.12.01 |
| Pig-iron | No definition provided | Christopher Rauch | 2023.12.01 |
| pigment | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Pigmentation | No definition provided | Christopher Rauch | 2023.12.01 |
| Pigments | No definition provided | Christopher Rauch | 2023.12.01 |