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

• 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
• 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
• 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。
• 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 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
• 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
• 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。
• 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；
• 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。
• This paper reported that an in vitro embryogenic callus induction and plantlet regeneration system from immature zygotic embryos of hybrid larch was established.
  以未成熟合子胚为外植体，建立杂种落叶松胚性愈伤组织诱导和植株再生体系。