callus meaning and definition

CALLUS noun

Definition of callus (noun)

1. an area of skin that is thick or hard from continual pressure or friction (as the sole of the foot)
   • synonyms: callosity
2. bony tissue formed during the healing of a fractured bone
3. (botany) an isolated thickening of tissue, especially a stiff protuberance on the lip of an orchid

CALLUS verb

Definition of callus (verb)

1. cause a callus to form on
   • "The long march had callused his feet"
2. form a callus or calluses
   • "His foot callused"