| Term | Definition | Contributor | Modified |
|---|---|---|---|
| microwaves | Generically, any radio frequency of 500 MHz or more. | Ryan McGranaghan | 2023.04.16 |
| Microwaves | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Microzonation and macrozonation | No definition provided | Ryan McGranaghan | 2023.04.16 |
| microzooplankton | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Middendorfite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| middle | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Middle ages | No definition provided | Christopher Rauch | 2023.12.01 |
| Middle ages--Archaeology | No definition provided | Christopher Rauch | 2023.12.01 |
| Middle ages--Architecture | No definition provided | Christopher Rauch | 2023.12.01 |
| Middle ages--Art | No definition provided | Christopher Rauch | 2023.12.01 |
| Middle ages--Bibl | No definition provided | Christopher Rauch | 2023.12.01 |
| Middle ages--Civilisation | No definition provided | Christopher Rauch | 2023.12.01 |
| Middle ages--Education | No definition provided | Christopher Rauch | 2023.12.01 |
| Middle ages--History | No definition provided | Christopher Rauch | 2023.12.01 |
| Middle ages--Literature | No definition provided | Christopher Rauch | 2023.12.01 |
| Middle ages--Military history | No definition provided | Christopher Rauch | 2023.12.01 |
| Middle ages--Music | No definition provided | Christopher Rauch | 2023.12.01 |
| Middle ages--Social life and customs | No definition provided | Christopher Rauch | 2023.12.01 |
| middle atmosphere | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Middle atmosphere: composition and chemistry | No definition provided | Ryan McGranaghan | 2023.04.16 |