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

• 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
• 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。
• 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。
• The buds differentiation rate of callus, which induced by the axillary buds, was higher comparatively.
  愈伤组织的诱导分化以腋芽为外植体的芽分化率相对较高。
• 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。
• 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。
• 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
• Effects of Sorbitol, ABA and Dehydration Treatment on the Growth of the Callus in Maize
  山梨醇、ABA和干燥处理对玉米愈伤组织生长的影响
• 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；
• 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。