Hebrew תסמונת דאון Noun תסמונת דאון / תִּסְמֹנֶת דָּאוּן • (tismónet dáun) f (neurology, medical genetics) Down syndrome (a genetic disorder caused by the presence of all or part of a third copy of chromosome 21 (a chromosomal excess), whereby the patients typically have a delay in cognitive ability and physical growth, as well as a small head and tilted eyelids) References “תסמונת דאון” in the Hebrew Terms Database of the Academy of Hebrew Language Further reading תסמונת דאון on the Hebrew Wikipedia.Wikipedia heWikiwand - on Seamless Wikipedia browsing. On steroids.