| Term | Definition | Contributor | Modified |
|---|---|---|---|
| Acoustic-gravity waves | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Acoustic phenomena in nature | No definition provided | Christopher Rauch | 2023.12.01 |
| AcousticPower | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Acoustic properties | No definition provided | Ryan McGranaghan | 2023.04.16 |
| acoustics | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Acoustics | No definition provided | Christopher Rauch | 2023.12.01 |
| AcousticSensor | No definition provided | Ryan McGranaghan | 2023.04.16 |
| acoustic wave | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Acrobats and acrobatism | No definition provided | Christopher Rauch | 2023.12.01 |
| Acrogens | No definition provided | Christopher Rauch | 2023.12.01 |
| acrolein | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Acromegaly | No definition provided | Christopher Rauch | 2023.12.01 |
| acronym | a set of letters that metadata designers love to use. | Jennie Rose Halperin | 2023.03.27 |
| across | No definition provided | Ryan McGranaghan | 2023.04.16 |
| acrylonitrile | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Acting | No definition provided | Christopher Rauch | 2023.12.01 |
| Acting--Study and teaching | No definition provided | Christopher Rauch | 2023.12.01 |
| Actiniaria | No definition provided | Christopher Rauch | 2023.12.01 |
| Actinium | No definition provided | Christopher Rauch | 2023.12.01 |
| actinoid | No definition provided | Ryan McGranaghan | 2023.04.16 |