| Term | Definition | Contributor | Modified |
|---|---|---|---|
| yes | The statement is in the affirmative. | Matthew Hanlon | 2023.03.27 |
| Yew | No definition provided | Christopher Rauch | 2023.12.01 |
| Yezidis | No definition provided | Christopher Rauch | 2023.12.01 |
| Yftisite (Y) | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Yiddish language | No definition provided | Christopher Rauch | 2023.12.01 |
| Yiddish language--Law | No definition provided | Christopher Rauch | 2023.12.01 |
| Yiddish literature | No definition provided | Christopher Rauch | 2023.12.01 |
| Yiddish literature--Bibl | No definition provided | Christopher Rauch | 2023.12.01 |
| Yiddish music | No definition provided | Christopher Rauch | 2023.12.01 |
| yield | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Yimengite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Yingjiangite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Yixunite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| YNAO__HALPH | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Yoderite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Yofortierite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Yoga | No definition provided | Christopher Rauch | 2023.12.01 |
| Yohkoh | No definition provided | Ryan McGranaghan | 2023.04.16 |
| YOHKOH__BCS | No definition provided | Ryan McGranaghan | 2023.04.16 |
| YohkohHardXrayFlareCatalog | Yohkoh/HXT Hard X-ray Flare List | Ryan McGranaghan | 2023.04.16 |