noun a thickened and hardened part of the skin or soft tissue, especially in an area that has been subjected to friction
In medicine, a callus is a thickened and hardened part of the skin that forms in response to repeated friction or pressure, typically on the hands or feet.
In botany, a callus refers to a mass of undifferentiated plant cells that form at a wound site, often leading to tissue regeneration.
In manufacturing, callus can refer to a buildup of material on a tool or machine due to repeated use or friction.
In agriculture, callus formation is a technique used in plant tissue culture for the propagation of new plants.
In paleontology, callus can refer to the bony tissue that forms around a fracture in a bone during the healing process.
In the context of writing, callus may refer to the thickened area of skin on a writer's hand from holding a pen or typing for long periods of time.
In psychology, callus may be used metaphorically to describe a hardened or insensitive attitude or behavior in a person.
For athletes, callus can refer to the toughened skin that forms on areas of the body subjected to repeated friction or pressure, such as the hands or feet.
In construction, callus can refer to the toughened skin on a worker's hands from handling tools and materials.
In gardening, callus may refer to the hardened tissue that forms on plant cuttings when they are allowed to dry out before being planted.