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Down syndrome properNoun

  /-dɹəm/ , /daʊn ˈsɪndɹoʊm/ , /daʊn ˈsɪndɹəʊm/
  • (neurology, chiefly, US, Australia, New Zealand) A genetic disorder caused by the presence of all or part of a third copy of chromosome 21 (a chromosomal excess), whereby the patients typically have a delay in cognitive ability and physical growth, as well as a small head and tilted eyelids. [from 1961.]
 síndrome de Down
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