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TRISOMY 21
Dictionary entry overview: What does trisomy 21 mean?
• TRISOMY 21 (noun)
The noun TRISOMY 21 has 1 sense:
1. a congenital disorder caused by having an extra 21st chromosome; results in a flat face and short stature and mental retardation
Familiarity information: TRISOMY 21 used as a noun is very rare.
Dictionary entry details
Sense 1
Meaning:
A congenital disorder caused by having an extra 21st chromosome; results in a flat face and short stature and mental retardation
Classified under:
Nouns denoting stable states of affairs
Synonyms:
Down's syndrome; Down syndrome; mongolianism; mongolism; trisomy 21
Hypernyms ("trisomy 21" is a kind of...):
birth defect; congenital abnormality; congenital anomaly; congenital defect; congenital disorder (a defect that is present at birth)
trisomy (chrosomal abnormality in which there is one more than the normal number of chromosomes in a cell)
Context examples
Also known as trisomy 21 syndrome.
(Down Syndrome, NCI Thesaurus)
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