| Term | Definition | Contributor | Modified |
|---|---|---|---|
| trl7 | No definition provided | Ryan McGranaghan | 2023.04.16 |
| trl8 | No definition provided | Ryan McGranaghan | 2023.04.16 |
| trl9 | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Trochoids | No definition provided | Christopher Rauch | 2023.12.01 |
| Troegerite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Trogerite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Troglodytes | No definition provided | Christopher Rauch | 2023.12.01 |
| Trogtalite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Troilite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Trojan asteroids | A member of the family of asteroids that share Jupiter's orbit and lie in elongated, curved regions around the two Lagrangian points 60° ahead and behind of Jupiter. The Lagrangian points L4 and L5 ho st several thousands of them. Originally, the term Trojan applied only to asteroids sharing Jupiter's orbit; however, planetoidal bodies have been discovered at the Lagrangian points of Mars and Neptune as well, and are also referred to as Mars Trojans and Neptune Trojans respectively. | Ryan McGranaghan | 2023.04.16 |
| Trojan planets | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Trojans | No definition provided | Christopher Rauch | 2023.12.01 |
| Trolleite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Tromba marina | No definition provided | Christopher Rauch | 2023.12.01 |
| Trona | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Troops, Billeting of | No definition provided | Christopher Rauch | 2023.12.01 |
| Troops, Pioneer | No definition provided | Christopher Rauch | 2023.12.01 |
| Troostite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| trophic dynamics | No definition provided | Ryan McGranaghan | 2023.04.16 |
| trophic level | No definition provided | Ryan McGranaghan | 2023.04.16 |