📖 WordNook

callus

noun
  1. (botany) an isolated thickening of tissue, especially a stiff protuberance on the lip of an orchid
  2. bony tissue formed during the healing of a fractured bone
  3. an area of skin that is thick or hard from continual pressure or friction (as the sole of the foot)
    callosity
verb
  1. to form a callus or calluses
    “My foot callused after many hours of hiking.”
  2. to cause a callus to form on
    “The long march had callused my feet.”