| Term | Definition | Contributor | Modified |
|---|---|---|---|
| Coal washing | No definition provided | Christopher Rauch | 2023.12.01 |
| coarse | No definition provided | Ryan McGranaghan | 2023.04.16 |
| coastal | No definition provided | Ryan McGranaghan | 2023.04.16 |
| coastal landform | No definition provided | Ryan McGranaghan | 2023.04.16 |
| coastal margin | No definition provided | Ryan McGranaghan | 2023.04.16 |
| coastal phenomena | No definition provided | Ryan McGranaghan | 2023.04.16 |
| coastal plain | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Coastal processes | No definition provided | Ryan McGranaghan | 2023.04.16 |
| coastal region | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Coast artillery | No definition provided | Christopher Rauch | 2023.12.01 |
| Coast changes | No definition provided | Christopher Rauch | 2023.12.01 |
| Coast defenses | No definition provided | Christopher Rauch | 2023.12.01 |
| Coast-guard (Great Britain) | No definition provided | Christopher Rauch | 2023.12.01 |
| Coast guns | No definition provided | Christopher Rauch | 2023.12.01 |
| Coast-pilot guides | No definition provided | Christopher Rauch | 2023.12.01 |
| Coasts | No definition provided | Christopher Rauch | 2023.12.01 |
| Coastwise navigation | No definition provided | Christopher Rauch | 2023.12.01 |
| Coats | No definition provided | Christopher Rauch | 2023.12.01 |
| Coats of arms | No definition provided | Christopher Rauch | 2023.12.01 |
| Cobalt | No definition provided | Christopher Rauch | 2023.12.01 |