| Term | Definition | Contributor | Modified |
|---|---|---|---|
| perihelion | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Perihelion | The nearest point to the Sun in an orbit around the Sun; opposite of aphelion. | Ryan McGranaghan | 2023.04.16 |
| Perinaeum | No definition provided | Christopher Rauch | 2023.12.01 |
| Perineorrhaphy | No definition provided | Christopher Rauch | 2023.12.01 |
| Perineum | No definition provided | Christopher Rauch | 2023.12.01 |
| Perineum--Rupture | No definition provided | Christopher Rauch | 2023.12.01 |
| Perineum--Surgery | No definition provided | Christopher Rauch | 2023.12.01 |
| period | Eras are divided into periods. [Wikipedia] | Ryan McGranaghan | 2023.04.16 |
| Period determination | No definition provided | Ryan McGranaghan | 2023.04.16 |
| periodic | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Periodicals | No definition provided | Christopher Rauch | 2023.12.01 |
| Periodicals--Bibl | No definition provided | Christopher Rauch | 2023.12.01 |
| Periodicals--Bibl.--Catalogs | No definition provided | Christopher Rauch | 2023.12.01 |
| Periodicals--Bibl.--Union lists | No definition provided | Christopher Rauch | 2023.12.01 |
| Periodicals--Directories | No definition provided | Christopher Rauch | 2023.12.01 |
| Periodicals, Ephemeral | No definition provided | Christopher Rauch | 2023.12.01 |
| Periodicals--Indexes | No definition provided | Christopher Rauch | 2023.12.01 |
| Periodicals--Union lists | No definition provided | Christopher Rauch | 2023.12.01 |
| Periodicity and periodic diseases | No definition provided | Christopher Rauch | 2023.12.01 |
| Periodicity in meteorology | No definition provided | Christopher Rauch | 2023.12.01 |