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

• 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
• 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。
• 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
• 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 of Young Chrysanthemum Petal
  菊花幼嫩花瓣愈伤组织的诱导和植株再生
• 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。
• 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。
• 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。
• 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。
• Druce. Result: Flower can regenerate plante by callus, while rhizome can regenerate adventitious bud directly.
  结果：花通过愈伤组织可形成再生植株，根状茎可直接分化出不定芽。