retardation

英 [ˌriːtɑːˈdeɪʃn]

美 [ˌriːtɑːrˈdeɪʃn]

n.  延迟;减缓;落后;迟缓

化学

BNC.17316 / COCA.13291

柯林斯词典

• N-UNCOUNT 延迟;减缓;落后;迟缓
  Retardationis the process of making something happen or develop more slowly, or the fact of being less well developed than other people or things of the same kind.
  1. ...other parents whose children had mental retardation.
     其他智障儿童的家长

英英释义

noun

• the act of slowing down or falling behind
  Synonym:slowdownlag
• a decrease in rate of change
  1. the deceleration of the arms race
  Synonym:decelerationslowing
• lack of normal development of intellectual capacities
  Synonym:mental retardationbackwardnessslownesssubnormality
• any agent that retards or delays or hinders
  1. flame-retardant
  Synonym:retardantretardent
• the extent to which something is delayed or held back

双语例句

• Cold stress on crops results in severe yield losses through growth retardation and irreversible damage.
  冷胁迫通过使植株生长迟缓和不可逆转的损伤，严重影响了作物产量。
• The theory confirms the increase in the retardation effect with decrease in particle size.
  理论证实，随着颗粒尺寸的减小，这一减速效应将增大。
• A retardation film of polymerisable liquid crystal has been developed.
  研制了一种由可聚合液晶制备的延迟膜。
• Conclusion ( 1) There is an association early awakening with psychomotor retardation in patients with depression.
  结论（）郁症的早醒可能与精神运动性阻滞相关联。
• Study on the Blood Acetylcholine Levels in Children with Mental Retardation
  精神发育迟滞儿童血中乙酰胆碱质量浓度的研究
• If not diagnosed promptly, the chronic dehydration can produce mental retardation, inadequate growth, and even death.
  如果没有及时地诊断治疗，这种慢性的的脱水会引发智利障碍、生长迟缓、甚至是死亡。
• Down syndrome is the most common genetic cause of mental retardation.
  唐氏综合症是一个常见的导致心理迟缓的遗传性因素。
• Put forward a new method of assembling polarization-interference to measure the phase retardation of wave-plate.
  提出了会聚偏振光干涉法测量波片相位延迟量的新方法。
• He also had mild mental retardation and abnormal findings on brain MRI.
  测验发现其有轻度智力障碍，脑部磁振摄影也有异常发现。
• Autistic intelligence varies widely, from severe retardation to savant syndrome.
  自闭症患者的智力差异甚广，从极度迟钝到学者症候群不等。