callus

英 [ˈkæləs]

美 [ˈkæləs]

n.  胼胝，老茧(手、足上的硬皮)

现在分词：callusing　过去式：callused　第三人称单数：calluses　过去分词：callused　

GRE医学

COCA.33141

牛津词典

noun

• 胼胝，老茧（手、足上的硬皮）
  an area of thick hard skin on a hand or foot, usually caused by rubbing

柯林斯词典

• 胼胝;老茧;硬结
  Acallusis an unwanted area of thick skin, usually on the palms of your hands or the soles of your feet, which has been caused by something rubbing against it.

英英释义

noun

• (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
• an area of skin that is thick or hard from continual pressure or friction (as the sole of the foot)
  Synonym:callosity

verb

• form a callus or calluses
  1. His foot callused
• cause a callus to form on
  1. The long march had callused his feet

双语例句

• At the same time, carbenicillin and cefotaxime showed positive effect on regeneration of callus.
  同时发现，羧卞青霉素与头孢霉素均对愈伤组织的分化有促进作用。
• Factors affecting induction of callus in Mikania micrantha Kunth were studied in the paper.
  对影响微甘菊愈伤组织诱导的因素进行了系统研究。
• The buds differentiation rate of callus, which induced by the axillary buds, was higher comparatively.
  愈伤组织的诱导分化以腋芽为外植体的芽分化率相对较高。
• Callus Induction and Subculture System Establishment of Peony
  牡丹愈伤组织诱导和继代培养体系的建立
• Meanwhile, paraffin-cut section method was used for studying on callus formation, cork cambium and vascular cambium initiation.
  同时，运用石蜡切片法研究剥皮后愈伤组织的形成、木栓形成层和维管形成层的发生；
• Callus induction and plant regeneration capacity of different varieties were significantly different.
  不同品种在诱导愈伤和分化再生上都有显著的基因型差异。
• Induction of callus and regeneration of Plantlets in cotyledon and hypocotyl segment culture of Chinese gooseberry
  猕猴桃离体子叶、下胚轴愈伤组织诱导和植株再生
• Effect of sugar and nitrogen on the callus growth and anthocyanin accumulation in celosia cristata;
  本试验研究了不同基本培养基对凤尾鸡冠花愈伤组织生长及花青素积累的影响。
• There was no significant correlation between callus induction and plant regeneration.
  愈伤组织诱导率和分化率之间无显著相关性。
• The effect of inducing callus by selecting epicotyl as explant was better than other explants.
  选用上胚轴为外植体的愈伤组织发生效果较其他外植体好；