音标:[.ri:tɑ:'deiʃәn] ;
n. 迟延, 妨碍, 阻止
[化] 缓聚作用
n. the extent to which something is delayed or held back
n. lack of normal development of intellectual capacities

词性分布:
名词100%

retardation的用法和样例:

例句

用作名词(n.)
  1. A score below 70 may indicate mental retardation.如果分数低于70可能表明智力迟钝。
  2. The rearward regiments are in painful retard.后续部队受到令人难以忍受的阻碍。
  3. Many factors can lead to growth retardation in unborn babies.许多因素可以导致胎儿发育迟缓。

词汇搭配

  • mental retardation智力迟钝
  • retard妨碍
  • retardation angle延迟角,滞后角...
  • retardation method阻尼法,迟滞法,扼流...
  • developmental retardation发育迟缓
  • psychomotor retardation精神运动性阻滞...
  • retardation plate推迟板
  • retardation spectrum推迟谱
  • magnetic retardation磁滞
  • chemical retardation化学阻滞
  • retardation path减速航迹
  • retardation test制动试验,减速试验...
  • retardation phase减速期,缓长期...
  • retardation network推迟网络
  • retardation time推迟时间,滞后时间,...
  • growth retardation生长阻滞
  • retardation factor阻滞因数
  • ion retardation离子减速,离子阻滞...
  • thermal retardation保温
  • retardation coil扼流圈,抗流线圈...

经典引文

  • Determine..the acceleration or retardation of the winter.

    出自:B. Stillingfleet
  • Growth retardation occurs in rabbits congenitally infected with rubella.

    出自:Nature
  • Psychopathy is not generally identified with mental retardation.

    出自:G. Sereny
【近义词】
【反义词】

The Mercury Mess By Samantha Levine / 2004, as first appeared in U.S. News nbsp; What are the dangers of mercury in fish? Can the mercury mess be cleaned up? 1 Are these fish safe to eat?” It’s a

发表于:2018-12-19 / 阅读(104) / 评论(0) 分类 彭蒙惠英语

Rare but Deadly By Susan Brink /2005, U.S. News World Report . All rights reserved with permission. Distributed by Tribune Media Services International. Simple, cheap blood tests could save thousands

发表于:2018-12-19 / 阅读(150) / 评论(0) 分类 彭蒙惠英语

Every week, more children arrive to work in the hundreds of primitive mines in the bush. Here they endure long hours at dangerous jobs, wringing flecks of gold from the dirt with mercury. One of them is a 12-year-old boy named Saliou. Momodou is just

发表于:2018-12-26 / 阅读(115) / 评论(0) 分类 自然百科2016年

People start stereotyping early. Even toddlers react positively to members of their own race, but often distrust those from different groups. The seeds of racism are planted in most everyone. Everyone, that is, except people with a rare genetic condi

发表于:2019-01-02 / 阅读(132) / 评论(0) 分类 60秒科学

By Lisa Schlein The UN Children's Fund, UNICEF, says Iodine Deficiency Disorders, which cause mental retardation, are a huge problem in Europe and Central Asia. UNICEF says this disorder can be solved

发表于:2019-01-03 / 阅读(117) / 评论(0) 分类 VOA2004(下)--健康科技

People start stereotyping early. Even toddlers react positively to members of their own race, but often distrust those from different groups. The seeds of racism are planted in most everyone. Everyone, that is, except people with a rare genetic condi

发表于:2019-01-08 / 阅读(143) / 评论(0) 分类 Scientific American(四)月

Time now for StoryCorps. This oral history project is traveling the country, collecting interviews between friends and families. Today we hear from a daughter and her father. --My name is David Warm, I'm 51 years old. --My name is Mary Warm, and I'm

发表于:2019-01-08 / 阅读(187) / 评论(0) 分类 2006年NPR美国国家公共电台

This is the VOA Special English Health Report. Deep inside each cell in our body is all the genetic information needed for life. Human genes are normally organized along forty-six chromosomes -- twenty-three from each parent. David Petersohn of Libe

发表于:2019-01-11 / 阅读(189) / 评论(0) 分类 VOA慢速英语2008年(九)月

This is the VOA Special English Health Report. Human genes are normally organized along forty-six chromosomes in our cells, twenty-three from each parent. A school for people with Down syndrome in Mexico City But some people are born with an extra c

发表于:2019-01-11 / 阅读(87) / 评论(0) 分类 VOA慢速英语2009年(九)月

By Carol Pearson Washington 14 January 2008 For years autism has baffled researchers and devastated families. Autism typically appears in the first three years of life. Symptoms include problems with communication, difficulty forming relationships an

发表于:2019-01-13 / 阅读(96) / 评论(0) 分类 VOA标准英语2008年(一月)

The Lacandon are direct descendants of the Maya peoples who live in the jungles of the Mexican state of Chiapas. Until the mid-20th century, they had little contact with the outside world. As a result, the indigenous group was almost extinct. Today

发表于:2019-01-13 / 阅读(96) / 评论(0) 分类 VOA标准英语2009年(五月)

这是一个令人心酸的故事,每个人都有权憧景新的生活,但年仅八岁的Philip除外,因为他缺乏憧憬未来的必要条件一个健康鲜活的生命,所以看看他的new life愿望吧,你一定被会为你的幸福感动

发表于:2019-02-20 / 阅读(93) / 评论(0) 分类 英语美文
学英语单词
acetylene chemistry
algorithm design
allocation of frequency band
annual canker
Apple Passbook
archanthropine
artificial aqueductus
automaton classification
available heating surface
bacteriacides
be congenial to
binocular color mixture
brusquest
chair-legs
Cistercianism
contemporary auditing technique
control chart method
core spray pump discharge valve
cost-revenue analysis
dinomastigotes
double-spacings
dragoneras
ecco
emptins
environmental standards
enzyme model
Eyes right!
flagrations
flock bond strength
floodlight
fly line
football players
fragile site
Gombrani I.
grain-stirring device
groupwares
happers
heat insulation layer
homespun
homoeostrichus multifidus
hydroelectric set
IDN
indicating head
internal record
iso-flotability
kamthi (kamptee)
lacrimoconchal suture
level spheroid
lifevests
loogie
marq
megalithic astronomy
microfacets
modeler
money house
Monotropa
monyal
narrow dimension
narrowleaf
natural abilities
negative temperature material
neutrophil cell
nickel oxide
nutrient balance
ocelligerus
onys
oxyanions
pest-controllers
photoelectron
pilot
poromerics
power-house substructure block
prescribed procedure
protein-tyrosine
psylla
punk rock
radioheliograph
rating systems
recognized debt securities
reconnaisance
Recurvirostridae
refined sugar
remethylation
reshape oneself
residual shrinkage
rias coast
Russian Civil War
sadasses
scomberomorus cavallas
self-assurances
SPDY
strawstack
stripe with shafting
subbing out
suction pit
tenaru
twin-track recorder
Use After Free
Vazhinka
wind-farms
Yangoda
zinc diffusion