DS (Down syndrome)
What it means
A genetic condition usually caused by an extra copy of chromosome 21. It can affect development and health in different ways. Down syndrome and autism are distinct conditions and can co-occur.
Term details
Category: diagnosis
Regional use: general
Last source check: July 28, 2026
Source
Check this definition against cdc.gov. Open the source before making health, education, funding, or legal decisions because guidance can change.
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