| Term | Definition | Contributor | Modified |
|---|---|---|---|
| Mental overwork | No definition provided | Christopher Rauch | 2023.12.01 |
| Mental philosophy | No definition provided | Christopher Rauch | 2023.12.01 |
| Mental physiology and hygiene | No definition provided | Christopher Rauch | 2023.12.01 |
| Mental suggestion | No definition provided | Christopher Rauch | 2023.12.01 |
| Menus | No definition provided | Christopher Rauch | 2023.12.01 |
| Mephitis | No definition provided | Christopher Rauch | 2023.12.01 |
| Mercallite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Mercantile law | No definition provided | Christopher Rauch | 2023.12.01 |
| Mercantile system | No definition provided | Christopher Rauch | 2023.12.01 |
| mercator | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Mercedita (Ship) | No definition provided | Christopher Rauch | 2023.12.01 |
| Mercenary troops | No definition provided | Christopher Rauch | 2023.12.01 |
| Mercerization | No definition provided | Christopher Rauch | 2023.12.01 |
| Merchandise | No definition provided | Christopher Rauch | 2023.12.01 |
| Merchant companies | No definition provided | Christopher Rauch | 2023.12.01 |
| Merchant marine | No definition provided | Christopher Rauch | 2023.12.01 |
| Merchant marine--Manning of vessels | No definition provided | Christopher Rauch | 2023.12.01 |
| Merchant marine--Passenger accommodation | No definition provided | Christopher Rauch | 2023.12.01 |
| Merchant marine--Signaling | No definition provided | Christopher Rauch | 2023.12.01 |
| Merchant marine--Subsidies | No definition provided | Christopher Rauch | 2023.12.01 |