n. Med. a congenital disorder due to a chromosome defect, characterized by mental retardation and physical abnormalities (cf. MONGOLISM).
Etymology: J. L. H. Down, Engl. physician d. 1896
n. Med. a congenital disorder due to a chromosome defect, characterized by mental retardation and physical abnormalities (cf. MONGOLISM).
Etymology: J. L. H. Down, Engl. physician d. 1896
Oxford English vocab. Оксфордский английский словарь. 2012