from
The Collaborative International Dictionary of English v.0.48
Tay-Sachs Disease \Tay"-Sachs Disease\, n. (Med.)
A rare hereditary disease affecting lipid metabolism in
humans, due to a deficiency of hexosaminidase. It occurs in
infants and children, and causes death before the onset of
adulthood. It occurs most commonly of people of Jewish origin
from easter Europe. It is characterized by accumulation of
lipids in nervous tissue, causes a red spot on the retina,
and eventual blindness and paralysis before death.
[PJC]