an area of skin that is thick or hard from continual pressure or friction (as the sole of the foot)
bony tissue formed during the healing of a fractured bone
(botany) an isolated thickening of tissue, especially a stiff protuberance on the lip of an orchid
cause a callus to form on
form a callus or calluses
having calluses; having skin made tough and thick through wear
emotionally hardened
make insensitive or callous; deaden feelings or morals
