Down's syndrome — Down syndrome a condition resulting from a chromosomal abnormality most commonly due to the presence of three copies of chromosome 21 (trisomy 21), which is most likely to occur with advanced maternal age. Down s syndrome can also occur as a… … The new mediacal dictionary
Down's syndrome — Down syndrome Down syn drome, Down s syndrome Down s syn drome, n. (Med.) A congenital disorder caused by an extra chromosome 21 in some or all cells. It causes a variable number and degree of abnormalities, including retarded growth, mental… … The Collaborative International Dictionary of English
Down's syndrome — ► NOUN Medicine ▪ a congenital disorder causing intellectual impairment and physical abnormalities. USAGE Down s syndrome is the accepted term in modern use, and former terms such as mongol and mongolism, which are likely to cause offence, should … English terms dictionary
Down's syndrome — Down s ,syndrome noun uncount DOWN SYNDROME … Usage of the words and phrases in modern English
Down's syndrome — Down s .syndrome n [U] [Date: 1900 2000; Origin: J. H. L. Down (1828 96), English doctor] a condition that someone is born with, that stops them from developing in a normal way, both mentally and physically … Dictionary of contemporary English
Down's Syndrome — 1961, from J.L.H. Down (1828 1896), English physician; chosen as a less racist name for the condition than earlier MONGOLISM (Cf. mongolism) … Etymology dictionary
Down's syndrome — N UNCOUNT Down s syndrome is a disorder that some people are born with. People who have Down s syndrome have a flat forehead and sloping eyes and lower than average intelligence. (in AM, usually use Down syndrome) … English dictionary
Down's syndrome — a condition resulting from a genetic abnormality in which an extra chromosome is present (there are three no. 21 chromosomes instead of the usual two), giving a total of 47 chromosomes rather than the normal 46. The chances of having a Down s… … Medical dictionary
Down's syndrome — noun Medicine a congenital disorder causing intellectual impairment and physical abnormalities including short stature and a broad facial profile. Origin 1960s: named after the 19th cent. English physician John L. H. Down. Usage Of relatively… … English new terms dictionary
Down's syndrome — UK [ˈdaʊnz ˌsɪndrəʊm] / US [ˈdaʊnz ˌsɪndroʊm] noun [uncountable] medical a medical condition that someone is born with, that makes them develop in a different way from most people, mentally and physically. Down s syndrome is often simply called… … English dictionary
