an area of skin that is thick or hard from continual pressure or friction (as the sole of the foot)
a hardened layer which reduces the elasticity of the skin, but at the same time protects the hypersensitivity of the underlying nerve endings
a hardened, thickened region of skin in an area subject to recurrent pressure or trauma
An area of roughened skin or horny growth on the head of a Right Whale.
A patch of rough thickened skin on the head of a right whale, often infested with whale lice.
n. The state of being hard and insensible.
A callosity is another name for callus, a piece of skin that has become thickened as a result of repeated contact and friction. The word callosity is generally reserved for describing the calluses found on the head of the three species of right whales.