| Term | Definition |
| bathymetry | measurement of water depth |
| beatitude | heavenly happiness;bliss |
| Beatitude | statement of those who are blessed;title of non-Orthodox bishop |
| Bell's palsy | inability to move face muscles |
| bereavement | deprive through death |
| bicameral | with two legislative chambers |
| blucher | a strong, leather half boot |
| bouquetier | flower holder |
| Bouvier des Flandres | rough-coated breed of dog used originally in Belgium for herding and guarding cattle |
| bouzouki | a long-necked, fretted lute of modern Greece |
| breeches buoy | harness carrying people between ships |
| breviary | Roman Catholic prayer book |
| bryology | study of mosses |
| caitiff | coward; a despicable person |
| calenture | tropical fever |
| cameoing | carved stone;brief appearance by famous actor |
| capriole | vertical leap by horse;ballet leap |
| carabao | Filipino water buffalo |
| cartouche, cartouch | casing for gunpowder;decorative panel;frame for name |
| cataplexy | sudden inability to move |
| categorical | absolute and explicit;involving categories |
| celebrant | officiating priest;worshiper;somebody celebrating |
| celluloid | colorless plastic;film |
| cerebrospinal | of brain and spinal cord |
| cerement | burial garments |
| charmeuse | A satin-finished silk fabric |
| cheval glass | long mirror |
| cilice | haircloth garment |
| Cimmerian | dark;inhabitant of dark land |
| clerisy | learned persons as a class; literati; intelligentsia |
| cloven-footed | Having the foot or hoof divided into two parts, as the ox;devilish or satanic |
| collusion | secret cooperation or agreement |
| commingle | mix something or become mixed |
| cogitable | Thinkable; conceivable |