callus
1. [ noun ] (medicine) bony tissue formed during the healing of a fractured bone
Related terms: scar chestnut
2. [ noun ] (medicine) an area of skin that is thick or hard from continual pressure or friction (as the sole of the foot)
Synonyms: callosity
Related terms: hardening corn
3. [ verb ] form a callus or calluses
Examples:

"His foot callused"

Related terms: harden callosity
4. [ verb ] cause a callus to form on
Examples:

"The long march had callused his feet"

Related terms: harden callosity
5. [ noun ] (botany) an isolated thickening of tissue, especially a stiff protuberance on the lip of an orchid
Related terms: plant_process botany
Similar spelling:   callous
  Cales
  calque
  Callis
  Calles
  Callas
  Calise
  calash
  calais
  calx
  calk
  calisaya
  caulk
  calyx
  calico