| Term | Definition | Contributor | Modified |
|---|---|---|---|
| centripetal force | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Centurion (Ship) | No definition provided | Christopher Rauch | 2023.12.01 |
| century | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Cephalaematoma | No definition provided | Christopher Rauch | 2023.12.01 |
| Ceph alæmatoma | No definition provided | Christopher Rauch | 2023.12.01 |
| Cephalæmatoma | No definition provided | Christopher Rauch | 2023.12.01 |
| Cephalærnatoma | No definition provided | Christopher Rauch | 2023.12.01 |
| Cephalhæmatonia | No definition provided | Christopher Rauch | 2023.12.01 |
| Cephalhematoma | No definition provided | Christopher Rauch | 2023.12.01 |
| Cephalopoda | No definition provided | Christopher Rauch | 2023.12.01 |
| Cephalopoda--Bibl | No definition provided | Christopher Rauch | 2023.12.01 |
| Cephalopoda, Fossil | No definition provided | Christopher Rauch | 2023.12.01 |
| Cepheid distance | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Cepheid variable stars | A class of luminous, yellow supergiants that are pulsating variables and whose period of variation is a function of their luminosity. These stars expand and contract at extremely regular periods, in t he range 1-50 days. Their highest brightness and surface temperature occur when their expansion velocity is greatest. Similarly, their minima in brightness and temperature occur when they are in the contraction phase. The longer the period, the more luminous the star. The process that drives the pulsation of Cepheid variables is the kappa mechanism. In fact, Cepheids provide one of the most powerful tools for measuring distances to other galaxies (period-luminosity relation). However, this method is limited to the distance of the Virgo cluster of galaxies (15-20 Mpc) even with the HST or the largest ground-based telescopes. One particularly special Cepheid is the North Star, Polaris. | Ryan McGranaghan | 2023.04.16 |
| ceramic | any of the various hard, brittle, heat-resistant, and corrosion-resistant materials made by shaping and then firing an inorganic, nonmetallic material, such as clay, at a high temperature. | John Kunze | 2024.11.15 |
| ceramic | made of clay and hardened by heat | John Kunze | 2024.07.10 |
| Ceramics | No definition provided | Christopher Rauch | 2023.12.01 |
| Ceramics, Dental | No definition provided | Christopher Rauch | 2023.12.01 |
| Cerargyrite | No definition provided | Ryan McGranaghan | 2023.04.16 |
| Cerchiaraite | No definition provided | Ryan McGranaghan | 2023.04.16 |