Meanings
- uncountablemedical geneticsThe presence of three copies of the 21st chromosome in the karyotype.
Synonyms: Down syndrome
Synonyms & antonyms
nounThe presence of three copies of the 21st chromosome in the karyotype.
More synonyms by meaning
nouna congenital disorder caused by having an extra 21st chromosome; results in a flat face and short stature and mental retardation
Synonym sets from Open English WordNet, CC BY 4.0.
Translations
Chinese Mandarin 21三体综合症, 21三體綜合症 /21三体综合症
- 21三体综合症 (èrshíyīsāntǐzōnghézhèng)syndrome
- 21三體綜合症 /21三体综合症 (èrshíyīsāntǐzōnghézhèng)syndrome
French trisomie 21
- trisomie 21syndrome
German Trisomie 21
- Trisomie 21syndrome
Polish trisomia 21
- trisomia 21syndrome
Portuguese trissomia 21, trissomia do 21
- trissomia 21syndrome
- trissomia do 21syndrome
Russian трисомия 21
- трисомия 21 (trisomija 21)syndrome
Cite this entry
trisomy 21. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/trisomy%2021
“trisomy 21.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/trisomy%2021. Accessed November 4, 2026.
WatkinsX Dictionary, s.v. “trisomy 21,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/trisomy%2021.
Source: trisomy 21 on Wiktionary, CC BY-SA 4.0.