英 [ˌriːtɑːˈdeɪʃn] 美 [ˌriːtɑːrˈdeɪʃn]
n. 阻滞；迟延；妨碍
retardation /ˌriːtɑːˈdeɪʃən/
不可数名词 Retardation is 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. 延迟; 减缓; 落后
...other parents whose children had mental retardation.
...其他智障儿童的家长。
a decrease in rate of change
同义词： deceleration / slowing
the extent to which something is delayed or held back
lack of normal development of intellectual capacities
同义词： mental retardation / backwardness / slowness / subnormality
迟缓-引用次数：89
延迟量-引用次数：47
A method using white-light Michelson interferometer and polarization interferometry system for measuring the retardation of wave plates(including the order of retardation) is presented.
将白光偏振干涉和迈克耳孙干涉仪相结合,提出了一种利用空间白光干涉图测量波片延迟量(包括级次信息)的方法。
减速
减速度
缓凝-引用次数：5
相位延迟-引用次数：5
Chapter three . introduce the design principal of crystal polarizing prisms and beam splitter prisms, introduce phase retardation plate in short.
第三章介绍了晶体偏光棱镜的及偏光分束棱镜的设计原理，简要介绍了相位延迟器件和退偏器件。
阻聚-引用次数：3
延滞-引用次数：3
It turns out that crack closure is the main reason for retardation, and crack tip blunting, crack deflection and strain-induced martensite would reinforce it.
室温蠕变对裂纹扩展产生延滞的原因主要是裂纹闭合,同时裂尖钝化、裂纹偏折及形变诱发马氏体的形成也会起到一定的作用。
延留音[亦作retardment]
迟滞量
延迟量
缓聚作用
减速度
阻滞
减速
推后
推迟
迟滞
延迟发育
迟缓
减速
推后
滞后
... resurrect修复 retardation减速度 retargetable可转移目标 ...
...中南大学学报（自然科学版、英文版） 关键字: 土柱试验;阻滞;粘土固化注浆;寿命[gap=1695]Key words: column test; retardation; clay-solidified grouting; effective running period...
... retardationpath减速航迹 retardation延迟 retardation阻滞作用 ...
阻滞；迟延；妨碍
Many factors can lead to growth retardation in unborn babies.
许多因素可以导致胎儿发育迟缓。
Acute exposure to lead may impact mice behavior altering such as irritability, hyperkinesis, retardation of learning and memory, etc.
急性铅暴露可能影响小鼠的行为改变，如易怒、运动亢进、学习和记忆迟钝等。
Studies show that iodine deficiency is the leading preventable cause of mental retardation.
研究显示，缺碘是智力发育迟缓的一个主要但可预防的因素。
Mrs.Shriver said that the Special Olympics proved a very important fact: that exceptional children with mental retardation can be exceptional athletes.
VOA : special.2009.08.23
But when it was all said and done he wasn't blind, he wasn't deaf, didn't lose language, didn't become aphasic, no paralysis, no retardation.
手术完成,他没有失明，没有失聪，没有失去语言能力，没有患失语症，没有麻痹，没有反应迟钝。
心理学导论课程节选 : 耶鲁公开课
So, it's not really a developmental ... it's not really a developmental delay in the way that it might make sense to think about certain forms of retardation.
孤独症并非发展延迟,不应当把它理解为,某种形式的发育迟缓
心理学导论课程节选 : 耶鲁公开课
Down syndrome is the most common genetic cause of mental retardation.
VOA : special.2009.09.09
Excerpted from The Kennedy Family and the Story of Mental Retardation by Edward Shorter.
She constantly emphasized growth: we grow as we help those with mental retardation grow.
It hits one in 5, 000 kids and causes mental retardation, anxiety and autismlike symptoms.