髓
s
u
ǐ
Definitions
1. marrow
2. essence
3. quintessence
4. pith (soft interior of plant stem)
Related Words
脊髓
jǐ suǐ
–
spinal cord
延髓
yán suǐ
–
medulla oblongata (the lower half of the brainstem)
髓鞘
suǐ qiào
–
myelin sheath (membrane surrounding axon of nerve cell)