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

• Using stems and young leaves of Rubus biflorus as explants, this paper researched the effect on inducing callus, budlets and roots and plantlet regeneration of different concentration hormone.
  利用粉枝莓的茎段和幼嫩叶片作为外植体，研究了不同激素水平对诱导产生愈伤组织、芽和根，完成植株再生的影响。
• 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。
• Objective: To study the effect of light intensity on the callus induction and resveratrol content of Polygonum cuspidatum.
  中文摘要：目的：研究光照强度对虎杖愈伤组织的诱导形成及其白藜芦醇含量的影响。
• Research on Regeneration of Callus and Adventitious Bud of Aquilegia vulgaris
  耧斗菜愈伤组织和不定芽诱导的初步研究
• Histology showed a marked increase in the size of the cartilaginous soft callus.
  组织学显示出了软骨质的柔软的骨痂的尺寸的标记的增加。
• 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。
• 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。
• Effects of Different Light Qualities on Multiplication and Resveratrol Accumulation of Grape Test-tube Plantlet and Its Callus
  不同光质对葡萄试管苗和愈伤组织增殖及白藜芦醇积累效应的研究
• Ultrastructures of callus, adventitious root and adventitious bud from flax
  亚麻愈伤组织、不定根及不定芽的超微结构研究
• 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。