Down syndrome
noun Etymology: J. L. H. Down died 1896 English physician Date: 1961 a congenital condition characterized by moderate to severe mental retardation, slanting eyes, a broad short skull, broad hands with short fingers, and trisomy of the human chromosome numbered 21 — called also Down's syndrome

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • 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 retardation, a… …   The Collaborative International Dictionary of English

  • Down syndrome — [doun] n. [after J. L. H. Down (1828 96), Brit physician] a congenital condition characterized by abnormal chromosomes, mental deficiency, a broad face, slanting eyes, a short fifth finger, etc.; Mongolism: also called Down s syndrome …   English World dictionary

  • Down syndrome — Down syndrome. См. болезнь Дауна. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • Down syndrome — Down ,syndrome noun uncount a medical condition that someone is born with, that makes them develop mentally and physically in a different way from most people …   Usage of the words and phrases in modern English

  • Down syndrome — Classification and external resources Boy with Down syndrome assembling a …   Wikipedia

  • Down syndrome — A common chromosome disorder due to an extra chromosome number 21 (trisomy 21). Down syndrome causes mental retardation, a characteristic face, and multiple malformations. Down syndrome is a relatively common birth defect. The chromosome… …   Medical dictionary

  • Down syndrome — Pathol. a genetic disorder, associated with the presence of an extra chromosome 21, characterized by mild to severe mental retardation, weak muscle tone, a low nasal bridge, and epicanthic folds at the eyelids. Also, Down s syndrome. Formerly,… …   Universalium

  • Down syndrome — noun a congenital disorder caused by having an extra 21st chromosome; results in a flat face and short stature and mental retardation • Syn: ↑mongolism, ↑mongolianism, ↑Down s syndrome, ↑trisomy 21 • Hypernyms: ↑trisomy, ↑birth defect, ↑ …   Useful english dictionary

  • Down syndrome — Down′ or Down s syndrome n. pat a genetic disorder associated with the presence of an extra chromosome 21, characterized by mental retardation, weak muscle tone, and epicanthic folds at the eyelids Formerly, mongolism Also called trisomy 21… …   From formal English to slang

  • Down syndrome — Down s syndrome …   The new mediacal dictionary

  • Down syndrome — /ˈdaʊn sɪndroʊm / (say down sindrohm) noun a genetic condition resulting from a third chromosome on the 21st chromosomal pairing, characterised by varying degrees of intellectual and physical impairment. Also, Down s syndrome. {from John Langdon… …   Australian English dictionary

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