trisomy 1
noundomain: state
Princeton WordNet [ver.3.1]
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EnglishDefinition
chrosomal abnormality in which there is one more than the normal number of chromosomes in a cell
Hypernym
any change in the normal structure or number of chromosomes; often results in physical or mental abnormalities
EnglishHyponym
mongolism 1
noun
a congenital disorder caused by having an extra 21st chromosome; results in a flat face and short stature and mental retardation
