callus
n. 皮肤的硬皮, 胼胝, (植物伤口的)愈合组织, 老茧 [医] 胼胝; 骨痂
发音
词形变化
别名
释义与例句
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1.
A hardened area of the skin (especially on the foot or hand) caused by repeated friction, wear or use.
胼胝
老茧
茧子
可数 不可数 -
2.
The material of repair in fractures of bone; a substance exuded at the site of fracture, which is at first soft or cartilaginous in consistency, but is ultimately converted into true bone and unites the fragments into a single piece.
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3.
The new formation over the end of a cutting, before it puts out rootlets.
愈伤组织
可数 不可数 生物 植物学 -
4.
In orchids, a fleshy outgrowth from the labellum.
可数 不可数 生物 植物学 -
5.
In grasses, a hardened extension from the base of a floret, which may or may not elongate and is often covered in hairs or bristles.
可数 不可数 生物 植物学 -
6.
A shining area on the frons of many species of Tabanomorpha (horse flies and relatives).
可数 不可数 生物 动物学
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1.
To form such hardened tissue.
长茧
不及物
词汇关系
词源
Borrowed from Latin callum (“hard skin”). Displaced Old English wearr.
来源：wiktionary