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Definition of Down’s syndrome noun from the Oxford Advanced Learner's Dictionary

Down’s syndrome

noun
 
/ˈdaʊnz sɪndrəʊm/
 
/ˈdaʊnz sɪndrəʊm/
(also Down's)
(both especially British English)
(North American English usually Down syndrome)
[uncountable]
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  1. a medical condition that some people are born with, caused by a fault with one chromosome, which results in learning disabilities
    • Her older brother has Down's syndrome.
    • Your chance of having a baby with Down's increases with age.
    Topics Disabilityc2
    Word Origin1960s: named after John L. H. Down (1828–96), the English physician who first described it.
trait
noun
 
 
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