退
行
性
t
u
ì
x
í
n
g
x
ì
n
g
Definitions
1. degenerative
2. retrograde
Components
退行
tuì xíng
–
to recede
性
xìng
–
nature
Related Words
退行性病变
tuì xíng xìng bìng biàn
–
degenerative lesion