callus

名词 callus:

1. an area of skin that is thick or hard from continual pressure or friction (as the sole of the foot)
   同义词：callosity
2. bony tissue formed during the healing of a fractured bone
3. (botany) an isolated thickening of tissue, especially a stiff protuberance on the lip of an orchid

动词 callus:

1. cause a callus to form on
2. form a callus or calluses

cal.lus

n.（名词）
【复数】 cal.lus.es

A localized thickening and enlargement of the horny layer of the skin.Also called callosity
鸡眼，老茧：皮肤角质层的局部增厚和增大也作 callosity
The hard bony tissue that develops around the ends of a fractured bone during healing.
胼胝：愈合期间在断骨末端周围长起来的硬骨组织
Botany
【植物学】
Undifferentiated tissue that develops on or around an injured or cut plant surface or in tissue culture.
愈伤组织：在受损或受切植物表面上或周围或在组织培育中长出的尚未分化的组织
The hardened, sometimes sharp base of the floret of certain grasses.
胼胝体：某种草的小花的坚硬的、有时是尖锐的底盘
v.intr.（不及物动词）
cal.lused,cal.lus.ing,cal.lus.es
To form or develop such hardened tissue.See Usage Note at callous
结硬皮，结痂：形成或培养此种硬质组织参见 callous

来源：
Latin [masculine of] callum
拉丁语 [] callum的阳性词