Down's syndrome

A form of Down syndrome — A genetic disorder caused by the presence of all or part of a third copy of chromosome 21 (a chromosomal excess), whereby the patients typically have a delay in cognitive ability and physical growth, as well as a small head and tilted eyelids.

Similar
mongolismmongolianismDown syndrometrisomy 21
Ask AI about this wordChatGPTClaudePerplexityGoogle AIGrok

Meanings

nounDown's syndrome (uncountable)
  1. CanadaUKalternativerareuncountableAlternative form of Down syndrome.

Synonyms & antonyms

nouna congenital disorder caused by having an extra 21st chromosome; results in a flat face and short stature and mental retardation

Similar
mongolismmongolianismDown syndrometrisomy 21
Broader
trisomybirth defectcongenital anomalycongenital defect
Also see
down syndromemongolianismmongolismtrisomy 21

Synonym sets from Open English WordNet, CC BY 4.0.

Cite this entry
APA

Down's syndrome. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/Down's%20syndrome

MLA

“Down's syndrome.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Down's%20syndrome. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “Down's syndrome,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/Down's%20syndrome.

Source: Down's syndrome on Wiktionary, CC BY-SA 4.0.