trisomy 21


tri·so·my 21

noun \ˈtrī-ˌsō-mē-ˌtwen-tē-ˈwən\

Definition of TRISOMY 21

Origin of TRISOMY 21

from the occurrence of trisomy in chromosome 21 of persons with Down syndrome
First Known Use: 1961

trisomy 21

noun \-ˌtwent-ē-ˈwən\   (Medical Dictionary)

Medical Definition of TRISOMY 21

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