Look up callus in Wiktionary, the free dictionary.
Callus is an area of toughened skin.
Callus may also refer to:
- Fibrocartilage callus, the temporary new bony tissue that forms at the ends of a fractured bone
- Callus (botany), a fleshy lump of tissue on the labellum (or lip) of orchid flowers
- Callus (cell biology), a mass of unorganized cells
- Callus (mollusc), a thickened layer of shell material
- Callus (album), a 2016 album by Gonjasufi