down's syndrome

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Definition
  1. Noun:
    • A congenital disorder caused by having an extra 21st chromosome: Down's syndrome is a genetic condition present from birth, characterized by the presence of an extra full or partial copy of chromosome 21.
    • Results in characteristic physical features and intellectual disability: This condition typically results in a distinct facial appearance (such as a flat face), short stature, and varying degrees of cognitive impairment or developmental delay.
Usage Examples
  • Noun:
    • The baby was diagnosed with Down's syndrome shortly after birth.
    • Advances in medical care have significantly improved the life expectancy for individuals with Down's syndrome.
    • The school has an inclusive program for children with Down's syndrome.
Advanced Usage
  • "to have Down's syndrome": This is the standard and respectful phrasing to indicate a person has the condition.
    • My cousin has Down's syndrome and is a talented artist.
  • "a person/individual/child with Down's syndrome": This person-first language is generally preferred, emphasizing the individual before the diagnosis.
    • She is a teacher who specializes in working with children with Down's syndrome.
Variants and Related Words
  • Down syndrome (n): An alternative, equally correct term for the condition. The apostrophe 's' is often omitted in modern usage.
    • The organization provides resources for families affected by Down syndrome.
  • Trisomy 21 (n): The scientific/medical term for the condition, referring directly to the presence of three copies of chromosome 21.
    • The genetic test confirmed a diagnosis of Trisomy 21.
Synonyms
  • Trisomy 21: The formal medical synonym.
  • (Note: There are no true synonyms that carry the same specific meaning. Other terms for intellectual disability are not synonyms for this specific genetic condition.)
Related Phrases
  • Genetic screening for Down's syndrome: Refers to prenatal tests that can assess the risk of the condition.
    • They decided to undergo genetic screening for Down's syndrome.
  • Down's syndrome awareness: Refers to efforts to educate the public about the condition.
    • October is Down's syndrome awareness month in many countries.
Important Notes on Usage
  • It is considered respectful to use person-first language (e.g., "a person with Down's syndrome") rather than defining someone solely by their condition (e.g., "a Down's syndrome person").
  • The term is a proper noun and is typically capitalized: Down's syndrome or Down syndrome.
  • Outdated and offensive terms like "mongolism" are unacceptable and should never be used.
Noun
  1. a congenital disorder caused by having an extra 21st chromosome; results in a flat face and short stature and mental retardation