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

• 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；
• 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。
• Effects of 2,4-D and 6-BA on Callus Initiation and Plantlet Regeneration from Mature Embryos of Indica Rice
  2,4-D和6-BA对籼稻成熟胚愈伤组织诱导和植株再生的影响
• Study on the Sucrose Metabolism in Embryogenic Callus of Occurrence Process of Picea Mongolica
  沙地云杉胚性愈伤组织发生过程中蔗糖代谢的研究
• 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。
• Embryogenic callus could be directly obtained on the MSB sold medium with the combination of IBA and KT.
  MSB培养基中添加IBA和BA也不能直接诱导获得胚性愈伤组织。
• The Callus Induction of Immature Embryo and Plant Regeneration of Seven Spring Wheat Varieties in Heilongjiang
  黑龙江7个春麦小麦品种幼胚愈伤诱导和植株再生研究
• Carbon source, nitrogen source and plant hormone had the obvious effects on the callus growth and flavonoids production.
  碳源、氮源、植物激素对愈伤组织生长和黄酮类形成影响较为显著。
• NaCl stress inhibited the differentiation of callus and plant regeneration.
  盐胁迫抑制了愈伤组织的分化和植株再生。
• 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。