MedicalTerminology DB

1 Definition of Down syndrome

Meaning of Down syndrome: A disorder caused by the presence of an extra chromosome 21 and characterized by mental retardation and distinguishing physical features.

A disorder caused by the presence of an extra chromosome 21 and characterized by mental retardation and distinguishing physical features.

For learning, not diagnosis. This glossary provides general educational information and is not a substitute for advice from a qualified healthcare professional. If you may be experiencing a medical emergency, contact local emergency services.