callus : | |||||||||||||
(botany) an isolated thickening of tissue, especially a stiff protuberance on the lip of an orchid bony tissue formed during the healing of a fractured bone form a callus or calluses; "His foot callused" cause a callus to form on; "The long march had callused his feet" an area of skin that is thick or hard from continual pressure or friction (as the sole of the foot) |
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