LEARNit Dictionary
Down’s syndrome
noun
/ˈdaʊnz sɪndrəʊm/
UK
/ˈdaʊnz sɪndrəʊm/
US
1
a medical condition that some people are born with, caused by a fault with one chromosome, which results in learning disabilities
سندرم داون, نشانگان داون, تریزومی ۲۱