| callus | (botany) an isolated thickening of tissue, especially a stiff protuberance on the lip of an orchid |
|---|---|
| callus | bony tissue formed during the healing of a fractured bone |
| callus | an area of skin that is thick or hard from continual pressure or friction (as the sole of the foot) |
| callus | form a callus or calluses |
| callus | cause a callus to form on |