retard

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++re·tard1 /rɪˈtɑːd $ -ɑːrd/ verb [transitive]  formalDELAY to delay the development of something, or to make something happen more slowly than expected 减缓，阻碍 SYN slow down Cold weather retards the growth of many plants. 寒冷的天气使许多植物生长滞缓。→ See Verb table

Examples from the Corpus

retard• This process is called retarding and it adds an interesting dimension to the bread.• The implication is that Britain's economic performance is retarded by an anti-industrial culture.• It says that the company razed forests, polluted rivers, retarded crop growth and caused birth defects.• Research from Harvard and United Nations organisations has shown that the cost of corruption includes retarded development and more inequalities.• Even in small amounts, lead can retard development in children.• The process has retarded the kind of interdisciplinary research required by complex environmental and population issues.• The inability to do so has retarded the progress of pallidotomy development for nearly 50 years.re·tard2 /ˈriːtɑːd $ -ɑːrd/ noun [countable]  spoken not politeSTUPID/NOT INTELLIGENTINSULT an offensive word for a stupid person 笨蛋Origin retard1 (1400-1500) Latin retardare, from tardus “slow”

re·tard1 verbre·tard2 nounChineseSyllable  

make or of Corpus delay to something, development the to

retard

I

re‧tard¹ /rɪˈtɑːd $ -ɑːrd/ verb [transitive]formal to delay the development of something, or to make something happen more slowly than expected
   SYN  slow down:
    Cold weather retards the growth of many plants.

II

re‧tard² /ˈriːtɑːd $ -ɑːrd/ noun [countable]
spoken not polite an offensive word for a stupid person