 down's_syndrome |
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| 1. | [ noun ] (medicine,psychology) a congenital disorder caused by having an extra 21st chromosome; results in a flat face and short stature and mental retardation | |
| Synonyms: | mongolianism Down_syndrome trisomy_21 mongolism | |
| Related terms: | birth_defect trisomy retardation | |
| Similar spelling: |
Down_syndrome |
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