n. bony tissue formed during the healing of a fractured bonen. (botany) an isolated thickening of tissue, especially a stiff protuberance on the lip of an orchidv. cause a callus to form on
n. 皮肤的硬皮, 胼胝, (植物伤口的)愈合组织, 老茧[医] 胼胝; 骨痂