| Term | Definition | Contributor | Modified |
|---|---|---|---|
| cinder cone | A volcanic cone built entirely of loose fragmented material (pyroclastics.) | Ryan McGranaghan | 2023.04.16 |
| Cinematograph | No definition provided | Christopher Rauch | 2023.12.01 |
| Cingalese | No definition provided | Christopher Rauch | 2023.12.01 |
| Cingalese language | No definition provided | Christopher Rauch | 2023.12.01 |
| Cingalese literature | No definition provided | Christopher Rauch | 2023.12.01 |
| Cingalese literature--Bibl | No definition provided | Christopher Rauch | 2023.12.01 |
| Cinnabar | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Cinnamic aldehyde | No definition provided | Christopher Rauch | 2023.12.01 |
| Cinnamon | No definition provided | Christopher Rauch | 2023.12.01 |
| Cinqttille (Game) | No definition provided | Christopher Rauch | 2023.12.01 |
| Cionorrhaphy | No definition provided | Christopher Rauch | 2023.12.01 |
| Cipher | No definition provided | Christopher Rauch | 2023.12.01 |
| Cipher and telegraph codes | No definition provided | Christopher Rauch | 2023.12.01 |
| Cipher and telegraph codes--Astronomy | No definition provided | Christopher Rauch | 2023.12.01 |
| Cipher and telegraph codes--Meteorology | No definition provided | Christopher Rauch | 2023.12.01 |
| Cipher and telegraph codes--Railroads | No definition provided | Christopher Rauch | 2023.12.01 |
| Ciphers | No definition provided | Christopher Rauch | 2023.12.01 |
| Ciphers (Lettering) | No definition provided | Christopher Rauch | 2023.12.01 |
| Ciprianiite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Circassian language | No definition provided | Christopher Rauch | 2023.12.01 |