减
毒
活
疫
苗
j
i
ǎ
n
d
ú
h
u
ó
y
ì
m
i
á
o
Definitions
1. attenuated live vaccine
Components
减
jiǎn
–
to lower
毒
dú
–
poison
活
huó
–
to live
疫苗
yì miáo
–
vaccine