s, klah-]
. | 1. | Psychiatry. an intense headache in which the pain is likened to one that would be produced by a sharp object driven into the skull. |
| 2. | (in ancient Rome) a vertical stripe or band of purple worn on the tunic by senators and equites. |
| 3. | Entomology. clavola. |

clavus cla·vus (klā'vəs, klä'-)
n. pl. cla·vi (-vī')
See corn.
A condition resulting from healing of a granuloma of the foot in yaws, in which a core falls out, leaving an erosion.