noun
- A congenital disorder caused by having an extra 21st chromosome; results in a flat face and short stature and mental retardation.
- synonyms: mongolism, mongolianism, Down's syndrome, trisomy 21
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). down syndrome. Retrieved September 20, 2026, from http://smartdefine.org/down_syndrome/definitions/1271288 |
| Chicago | WordNet. 2010. "down syndrome" http://smartdefine.org/down_syndrome/definitions/1271288 (accessed September 20, 2026). |
| Harvard | WordNet 2010, down syndrome, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/down_syndrome/definitions/1271288>. |
| MLA | WordNet. "down syndrome" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/down_syndrome/definitions/1271288> |