trisomy 21

noun tri·so·my 21 \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
Medical Dictionary

trisomy 21

noun \-ˌtwent-ē-ˈwən\

Medical Definition of TRISOMY 21


Next Word in the Dictionary: trisplanchnicPrevious Word in the Dictionary: trisomyAll Words Near: trisomy 21
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears