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

• This experiment inspected the effect of four different growth regulators on callus induction of cotyledon, young leaf, petiole and Hypocotyl in Creeping Dichondra with the orthogonal design.
  采用正交设计试验法，研究了四种不同生长调节剂对马蹄金子叶、片、柄和下胚轴愈伤组织诱导的影响。
• 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。
• 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
• 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。
• 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。
• 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。
• 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。
• 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。
• Callus induction and Plantlet Regeneration of Begonia imperialis lem.
  帝王秋海棠愈伤组织的诱导和植株再生。
• 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。