| Term | Definition | Contributor | Modified |
|---|---|---|---|
| epa | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Ephemeral active regions | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Ephemeral active regions | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Ephemeral active regions | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Ephemeral periodicals | No definition provided | Christopher Rauch | 2023.12.01 |
| Ephemeridae | No definition provided | Christopher Rauch | 2023.12.01 |
| Ephemerides | A table of computed positions occupied by a celestial body over successive intervals of time such as daily; plural ephemerides. | Ryan McGranaghan | 2023.04.16 |
| Ephemerides (Astronomy) | No definition provided | Christopher Rauch | 2023.12.01 |
| ephemeris | An astronomical almanac listing solar coordinates and the positions of the Sun and other heavenly bodies at regular intervals in time. | Ryan McGranaghan | 2023.04.16 |
| Ephemeris | The spatial coordinates of a body as a function of time. When used as an Instrument Type it represents the process or methods used to generate spatial coordinates. | Ryan McGranaghan | 2023.04.16 |
| Ephemeris | The spatial coordinates of a body as afunction of time. When used as an Instrument Type it represents the processor methods used to generate spatial coordinates. | Ryan McGranaghan | 2023.04.16 |
| Ephesite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Ephestia kuehniella | No definition provided | Christopher Rauch | 2023.12.01 |
| Ephod | No definition provided | Christopher Rauch | 2023.12.01 |
| Ephrata community | No definition provided | Christopher Rauch | 2023.12.01 |
| Ephthalites | No definition provided | Christopher Rauch | 2023.12.01 |
| epi | No definition provided | Ryan McGranaghan | 2023.04.16 |
| epicenter | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Epic poetry | No definition provided | Christopher Rauch | 2023.12.01 |
| Epic poetry, Finnish | No definition provided | Christopher Rauch | 2023.12.01 |