老
年
痴
呆
症
l
ǎ
o
n
i
á
n
c
h
ī
d
ā
i
z
h
è
n
g
Definitions
1. senile dementia
2. Alzheimer's disease
Components
老年痴呆
lǎo nián chī dāi
–
senile dementia
症
zhèng
–
disease